tag:blogger.com,1999:blog-33776132473472293342024-02-19T02:11:24.054-08:00CollinLab SurescoreCollin Wonghttp://www.blogger.com/profile/16361719825418477584noreply@blogger.comBlogger85125tag:blogger.com,1999:blog-3377613247347229334.post-40908557451904587312021-03-25T20:44:00.004-07:002021-03-25T20:44:58.912-07:00600 MCQ Physics Chem Physics Component <div class="separator" style="clear: both;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhouRJ9NGJQFuM7D3WSIr3ZDbDoMUcw4fjMBa3UfM4oCMmdMqU7JvdPY8t9K_5OzR0E3jBJ-IAObjllnEBElK1z_LmN-OXv6Urflh7QasrsFPyHdNTMDvA91CsmGU4AXTqTEKlOi0y0H3g/s0/01.JPG" style="display: block; padding: 1em 0px; text-align: center;">2019 St Nicholas Girl SA2 Physics MCQ </a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhouRJ9NGJQFuM7D3WSIr3ZDbDoMUcw4fjMBa3UfM4oCMmdMqU7JvdPY8t9K_5OzR0E3jBJ-IAObjllnEBElK1z_LmN-OXv6Urflh7QasrsFPyHdNTMDvA91CsmGU4AXTqTEKlOi0y0H3g/s0/01.JPG" style="display: block; padding: 1em 0px; text-align: center;"><img alt="" border="0" data-original-height="822" data-original-width="738" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhouRJ9NGJQFuM7D3WSIr3ZDbDoMUcw4fjMBa3UfM4oCMmdMqU7JvdPY8t9K_5OzR0E3jBJ-IAObjllnEBElK1z_LmN-OXv6Urflh7QasrsFPyHdNTMDvA91CsmGU4AXTqTEKlOi0y0H3g/s0/01.JPG" /></a></div><div class="separator" style="clear: both;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEic60VCRLH1gXgDq0uY1YTcW2R2663-tAPS5NIA_zHeAyGv2mg9PmGRqDOEUkDfoodfA0pk14wjjfqSKu45Fu4AeK_fSYy950XwQcAvNavopHsEyhOao-_QkVWiw-XdfMBZuu2ijQjGBPc/s0/02.JPG" style="display: block; 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padding: 1em 0px; text-align: center;">xx</a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG60tNxvTxAv49MFcV7ymxCtQ6Dl4q4gROmpHtsmoLLHEFzeGosrPd3NdizVhES_GoT_A7cradXMWaXcTKrgs0bf9PMvmttsQuxQ76UlGqaX2WfgtaRcqr24Ug1as_AeqBkO-wQwNoom0/s0/08.JPG" style="display: block; padding: 1em 0px; text-align: center;">xx</a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG60tNxvTxAv49MFcV7ymxCtQ6Dl4q4gROmpHtsmoLLHEFzeGosrPd3NdizVhES_GoT_A7cradXMWaXcTKrgs0bf9PMvmttsQuxQ76UlGqaX2WfgtaRcqr24Ug1as_AeqBkO-wQwNoom0/s0/08.JPG" style="display: block; padding: 1em 0px; text-align: center;">xx</a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG60tNxvTxAv49MFcV7ymxCtQ6Dl4q4gROmpHtsmoLLHEFzeGosrPd3NdizVhES_GoT_A7cradXMWaXcTKrgs0bf9PMvmttsQuxQ76UlGqaX2WfgtaRcqr24Ug1as_AeqBkO-wQwNoom0/s0/08.JPG" style="display: block; padding: 1em 0px; text-align: center;">xx</a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG60tNxvTxAv49MFcV7ymxCtQ6Dl4q4gROmpHtsmoLLHEFzeGosrPd3NdizVhES_GoT_A7cradXMWaXcTKrgs0bf9PMvmttsQuxQ76UlGqaX2WfgtaRcqr24Ug1as_AeqBkO-wQwNoom0/s0/08.JPG" style="display: block; padding: 1em 0px; text-align: center;">xx</a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG60tNxvTxAv49MFcV7ymxCtQ6Dl4q4gROmpHtsmoLLHEFzeGosrPd3NdizVhES_GoT_A7cradXMWaXcTKrgs0bf9PMvmttsQuxQ76UlGqaX2WfgtaRcqr24Ug1as_AeqBkO-wQwNoom0/s0/08.JPG" style="display: block; padding: 1em 0px; text-align: center;"><br /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG60tNxvTxAv49MFcV7ymxCtQ6Dl4q4gROmpHtsmoLLHEFzeGosrPd3NdizVhES_GoT_A7cradXMWaXcTKrgs0bf9PMvmttsQuxQ76UlGqaX2WfgtaRcqr24Ug1as_AeqBkO-wQwNoom0/s0/08.JPG" style="display: block; padding: 1em 0px; text-align: center;">xx</a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG60tNxvTxAv49MFcV7ymxCtQ6Dl4q4gROmpHtsmoLLHEFzeGosrPd3NdizVhES_GoT_A7cradXMWaXcTKrgs0bf9PMvmttsQuxQ76UlGqaX2WfgtaRcqr24Ug1as_AeqBkO-wQwNoom0/s0/08.JPG" style="display: block; padding: 1em 0px; text-align: center;"><br /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG60tNxvTxAv49MFcV7ymxCtQ6Dl4q4gROmpHtsmoLLHEFzeGosrPd3NdizVhES_GoT_A7cradXMWaXcTKrgs0bf9PMvmttsQuxQ76UlGqaX2WfgtaRcqr24Ug1as_AeqBkO-wQwNoom0/s0/08.JPG" style="display: block; padding: 1em 0px; text-align: center;">xx</a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG60tNxvTxAv49MFcV7ymxCtQ6Dl4q4gROmpHtsmoLLHEFzeGosrPd3NdizVhES_GoT_A7cradXMWaXcTKrgs0bf9PMvmttsQuxQ76UlGqaX2WfgtaRcqr24Ug1as_AeqBkO-wQwNoom0/s0/08.JPG" style="display: block; padding: 1em 0px; text-align: center;"><br /></a><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgkAnRhhfBQh5ww0Mk_q4F6RiFYNi6EXn3g3XOhb0Zu1Ael3iyWFat5fFc2-W6wpRBkH84kNAD2_s56oURI2bbp4eX9yS4UItybZMdI9UTAaALvyBuNdatr9KSiHIcUfMYKFHM4Ci4T6fs/s724/03.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="55" data-original-width="724" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgkAnRhhfBQh5ww0Mk_q4F6RiFYNi6EXn3g3XOhb0Zu1Ael3iyWFat5fFc2-W6wpRBkH84kNAD2_s56oURI2bbp4eX9yS4UItybZMdI9UTAaALvyBuNdatr9KSiHIcUfMYKFHM4Ci4T6fs/s16000/03.JPG" /></a></div><br /><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG60tNxvTxAv49MFcV7ymxCtQ6Dl4q4gROmpHtsmoLLHEFzeGosrPd3NdizVhES_GoT_A7cradXMWaXcTKrgs0bf9PMvmttsQuxQ76UlGqaX2WfgtaRcqr24Ug1as_AeqBkO-wQwNoom0/s0/08.JPG" style="display: block; padding: 1em 0px; text-align: center;">xxx</a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG60tNxvTxAv49MFcV7ymxCtQ6Dl4q4gROmpHtsmoLLHEFzeGosrPd3NdizVhES_GoT_A7cradXMWaXcTKrgs0bf9PMvmttsQuxQ76UlGqaX2WfgtaRcqr24Ug1as_AeqBkO-wQwNoom0/s0/08.JPG" style="display: block; padding: 1em 0px; text-align: center;">xx</a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG60tNxvTxAv49MFcV7ymxCtQ6Dl4q4gROmpHtsmoLLHEFzeGosrPd3NdizVhES_GoT_A7cradXMWaXcTKrgs0bf9PMvmttsQuxQ76UlGqaX2WfgtaRcqr24Ug1as_AeqBkO-wQwNoom0/s0/08.JPG" style="display: block; padding: 1em 0px; text-align: center;">xx</a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG60tNxvTxAv49MFcV7ymxCtQ6Dl4q4gROmpHtsmoLLHEFzeGosrPd3NdizVhES_GoT_A7cradXMWaXcTKrgs0bf9PMvmttsQuxQ76UlGqaX2WfgtaRcqr24Ug1as_AeqBkO-wQwNoom0/s0/08.JPG" style="display: block; padding: 1em 0px; text-align: center;">xxx</a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG60tNxvTxAv49MFcV7ymxCtQ6Dl4q4gROmpHtsmoLLHEFzeGosrPd3NdizVhES_GoT_A7cradXMWaXcTKrgs0bf9PMvmttsQuxQ76UlGqaX2WfgtaRcqr24Ug1as_AeqBkO-wQwNoom0/s0/08.JPG" style="display: block; padding: 1em 0px; text-align: center;">xxx</a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG60tNxvTxAv49MFcV7ymxCtQ6Dl4q4gROmpHtsmoLLHEFzeGosrPd3NdizVhES_GoT_A7cradXMWaXcTKrgs0bf9PMvmttsQuxQ76UlGqaX2WfgtaRcqr24Ug1as_AeqBkO-wQwNoom0/s0/08.JPG" style="display: block; padding: 1em 0px; text-align: center;">xx</a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG60tNxvTxAv49MFcV7ymxCtQ6Dl4q4gROmpHtsmoLLHEFzeGosrPd3NdizVhES_GoT_A7cradXMWaXcTKrgs0bf9PMvmttsQuxQ76UlGqaX2WfgtaRcqr24Ug1as_AeqBkO-wQwNoom0/s0/08.JPG" style="display: block; padding: 1em 0px; text-align: center;">xx</a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG60tNxvTxAv49MFcV7ymxCtQ6Dl4q4gROmpHtsmoLLHEFzeGosrPd3NdizVhES_GoT_A7cradXMWaXcTKrgs0bf9PMvmttsQuxQ76UlGqaX2WfgtaRcqr24Ug1as_AeqBkO-wQwNoom0/s0/08.JPG" style="display: block; padding: 1em 0px; text-align: center;"><br /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG60tNxvTxAv49MFcV7ymxCtQ6Dl4q4gROmpHtsmoLLHEFzeGosrPd3NdizVhES_GoT_A7cradXMWaXcTKrgs0bf9PMvmttsQuxQ76UlGqaX2WfgtaRcqr24Ug1as_AeqBkO-wQwNoom0/s0/08.JPG" style="display: block; padding: 1em 0px; text-align: center;">2019 Singapore Chinese Girl Physics SA2 MCQ</a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjG60tNxvTxAv49MFcV7ymxCtQ6Dl4q4gROmpHtsmoLLHEFzeGosrPd3NdizVhES_GoT_A7cradXMWaXcTKrgs0bf9PMvmttsQuxQ76UlGqaX2WfgtaRcqr24Ug1as_AeqBkO-wQwNoom0/s0/08.JPG" style="display: block; padding: 1em 0px; text-align: center;"><br /></a><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhC82QJye_yhC_QzWqZ4CnAo80_Gc78_DIPvixXB9hDU9Z5o8FvNj6UX6paQPwADzlK9DQO0C9EBo7pWDrhwO069fI3-RYumB16F6feLEwtfO9aQisL1Ps8BHHUEyhDmsnVhk0piLeYK_Y/s2048/a01.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2048" data-original-width="1448" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhC82QJye_yhC_QzWqZ4CnAo80_Gc78_DIPvixXB9hDU9Z5o8FvNj6UX6paQPwADzlK9DQO0C9EBo7pWDrhwO069fI3-RYumB16F6feLEwtfO9aQisL1Ps8BHHUEyhDmsnVhk0piLeYK_Y/s16000/a01.png" /></a></div><br /><div class="separator" style="clear: both; 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<br />Collin Wonghttp://www.blogger.com/profile/16361719825418477584noreply@blogger.com0tag:blogger.com,1999:blog-3377613247347229334.post-28511095677391311482019-08-04T12:46:00.001-07:002019-08-06T08:17:45.257-07:00NanChiau 2017 Chemistry A2<div class="separator" style="clear: both; text-align: center;">
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<br />Collin Wonghttp://www.blogger.com/profile/16361719825418477584noreply@blogger.com0tag:blogger.com,1999:blog-3377613247347229334.post-44734276669094459002019-07-17T19:20:00.001-07:002019-07-17T19:20:03.997-07:002017 St Gabriel Physics question 05 onwards <div class="separator" style="clear: both; text-align: center;">
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<br />Collin Wonghttp://www.blogger.com/profile/16361719825418477584noreply@blogger.com0tag:blogger.com,1999:blog-3377613247347229334.post-19761850431008175692019-07-17T19:17:00.000-07:002019-07-17T19:20:24.037-07:002017 St Gabriel Chemistry Section B Onwards<div class="separator" style="clear: both; text-align: center;">
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<br />Collin Wonghttp://www.blogger.com/profile/16361719825418477584noreply@blogger.com0tag:blogger.com,1999:blog-3377613247347229334.post-20184159675728564752019-07-04T14:40:00.003-07:002019-07-04T14:40:41.278-07:00xxx eee sssss as <div class="separator" style="clear: both; text-align: center;">
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<br />Collin Wonghttp://www.blogger.com/profile/16361719825418477584noreply@blogger.com0tag:blogger.com,1999:blog-3377613247347229334.post-83477433878285276032019-07-04T14:32:00.002-07:002020-08-02T15:55:04.529-07:00Geylang Methodist 2018 9 Electrolysis<div class="separator" style="clear: both; text-align: center;">
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<br />Collin Wonghttp://www.blogger.com/profile/16361719825418477584noreply@blogger.com0tag:blogger.com,1999:blog-3377613247347229334.post-21355937140535782452019-07-04T14:21:00.002-07:002020-07-27T16:51:05.014-07:00Geylang Methodist 2018 Chemistry Question 10 organic chem<div class="separator" style="clear: both; text-align: center;">
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Physics and Chemistry O and N level from 8 years experienced Tutor. watsapp 9 0 4 0 2 3 1 4 collin for enquiries</div>
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<br />Collin Wonghttp://www.blogger.com/profile/16361719825418477584noreply@blogger.com0tag:blogger.com,1999:blog-3377613247347229334.post-70228604757944074862019-02-21T03:05:00.001-08:002019-02-21T03:05:25.110-08:00Poly Aerospace, Electronic engineering Prep notes link Electrical Circuit<br />
<br />
Kirchoff Current / Voltage Law<br />
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<a href="https://isaacphysics.org/concepts/cp_kirchhoffs_laws">https://isaacphysics.org/concepts/cp_kirchhoffs_laws</a><br />
<br />
<br />
Thevenin Theorem<br />
<br />
<a href="https://www.electronics-tutorials.ws/dccircuits/dcp_7.html">https://www.electronics-tutorials.ws/dccircuits/dcp_7.html</a><br />
<br />
Norton's Theorem<br />
<br />
<a href="http://hyperphysics.phy-astr.gsu.edu/hbase/electric/Norton.html">http://hyperphysics.phy-astr.gsu.edu/hbase/electric/Norton.html</a><br />
<br />
<br />
Complex Number<br />
<br />
<a href="https://www.mathsisfun.com/numbers/complex-numbers.html">https://www.mathsisfun.com/numbers/complex-numbers.html</a><br />
<br />
First order linear Differential Equation<br />
<br />
<a href="https://www.cliffsnotes.com/study-guides/differential-equations/first-order-equations/first-order-linear-equations">https://www.cliffsnotes.com/study-guides/differential-equations/first-order-equations/first-order-linear-equations</a><br />
<br />
basic AND , NAND , NOT , XOR Gate logic gate<br />
<br />
<a href="http://www.ee.surrey.ac.uk/Projects/CAL/digital-logic/gatesfunc/">http://www.ee.surrey.ac.uk/Projects/CAL/digital-logic/gatesfunc/</a><br />
<br />
Boolean Algebra<br />
<br />
<a href="https://www.electronics-tutorials.ws/boolean/bool_6.html">https://www.electronics-tutorials.ws/boolean/bool_6.html</a><br />
<br />
<br />
BJT and MOSFET<br />
<br />
<a href="https://www.electronics-tutorials.ws/transistor/tran_1.html">https://www.electronics-tutorials.ws/transistor/tran_1.html</a><br />
<br />
<br />
AC analogue analysis<br />
<br />
<a href="https://www.embedded.com/design/real-time-and-performance/4007541/Analyzing-circuit-sensitivity-for-analog-circuit-design">https://www.embedded.com/design/real-time-and-performance/4007541/Analyzing-circuit-sensitivity-for-analog-circuit-design</a><br />
<br />
normal distribution<br />
<br />
<a href="https://www.mathsisfun.com/data/standard-normal-distribution.html">https://www.mathsisfun.com/data/standard-normal-distribution.html</a><br />
<br />
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<br />Collin Wonghttp://www.blogger.com/profile/16361719825418477584noreply@blogger.com0tag:blogger.com,1999:blog-3377613247347229334.post-48250120180462387022019-01-16T15:09:00.002-08:002020-01-06T21:15:51.285-08:002020 TESTIMONIAL <div class="separator" style="clear: both; text-align: center;">
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this is my hardworking student from a E8 both to a B3</div>
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kenny lim pasir ris crest sec improve from e8 to b3 !</div>
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Derryl Chua 2018 Sec 4N comb phy chem </div>
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<br />Collin Wonghttp://www.blogger.com/profile/16361719825418477584noreply@blogger.com0tag:blogger.com,1999:blog-3377613247347229334.post-76982364276243313292018-02-16T20:12:00.005-08:002020-08-02T15:57:43.840-07:002016 St Nicholas Chemistry <div class="separator" style="clear: both; text-align: center;">
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<span style="font-size: x-large;"> 2016 St Nicholas Girl Chemistry</span> <br />
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<br />Collin Wonghttp://www.blogger.com/profile/16361719825418477584noreply@blogger.com0tag:blogger.com,1999:blog-3377613247347229334.post-20784162897965221522018-01-21T17:15:00.002-08:002019-01-01T17:12:21.673-08:002018 Combined Physics/Chem Testimonial <div class="separator" style="clear: both; text-align: center;">
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<u><strong>Testimonial of Result 2018</strong></u></div>
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Deryll Chua Sec 4N lvl2018</div>
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comb physics chem </div>
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Dunearn Secondary</div>
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<br />Collin Wonghttp://www.blogger.com/profile/16361719825418477584noreply@blogger.com0tag:blogger.com,1999:blog-3377613247347229334.post-2602852923942194362018-01-11T18:57:00.002-08:002018-01-11T23:09:14.988-08:002016 SCG Chemistry Gala <div class="separator" style="clear: both; text-align: center;">
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<br />Collin Wonghttp://www.blogger.com/profile/16361719825418477584noreply@blogger.com0tag:blogger.com,1999:blog-3377613247347229334.post-83064917029075474032017-12-04T17:51:00.002-08:002017-12-04T19:24:27.818-08:00chinese 01 Bukit Panjang Govt High 物理 2010 年<div class="separator" style="clear: both; text-align: center;">
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入射波(incident ray)、反射波(refracted ray) </div>
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一位学生实验投射光在三角型玻璃XYZ一道光与正方17度.接下来光以折射状态如下</div>
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a (I) 请算出玻璃的折射率</div>
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(II) 请写出E 发生</div>
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(III)请算出最低的角度</div>
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</div>
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b 利用计算公式,查出光线往那里前进</div>
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Collin Wonghttp://www.blogger.com/profile/16361719825418477584noreply@blogger.com0tag:blogger.com,1999:blog-3377613247347229334.post-49342487225595326732017-12-03T23:50:00.002-08:002020-07-27T16:50:42.598-07:00Bukit Panjang Govt High 2010 Physics <a href="https://drive.google.com/file/d/1ZvmfSTIgMfL54BLSxqeGHbvoUAz0ZLaA/view?usp=sharing" rel="nofollow" target="_blank">Bukit Panjang Govt High 2010 Physics</a><br />
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Physics and Chemistry O and N level from 8 years experienced Tutor. watsapp 9 0 4 0 2 3 1 4 collin for enquiriesCollin Wonghttp://www.blogger.com/profile/16361719825418477584noreply@blogger.com0tag:blogger.com,1999:blog-3377613247347229334.post-36285121403193691982017-12-03T23:26:00.003-08:002017-12-03T23:41:12.495-08:00Chestnut drive Chemistry 2014 <br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<a href="https://drive.google.com/file/d/1y3r_2AE-fV76jhINIUrNMpDotv9CLYCk/view?usp=sharing" rel="nofollow" target="_blank">unabridged version of chestnut drive chem 2014 chem mcq</a><br />
<a href="https://drive.google.com/file/d/1mUCZONEinIcClmEtuseVhm7mMtPkumXR/view?usp=sharing" rel="nofollow" target="_blank">unabridged version of chestnut drive chem 2014 chem structured</a><br />
<br />
<br />
Answer
<b style="mso-bidi-font-weight: normal;">all</b> questions in this section.</div>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
The
total marks for this section is 40.</div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">1</span></b></div>
</td>
<td colspan="6" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">A substance was heated in a boiling tube and the physical
states of the substance were obtained at the given temperatures.</span></div>
<div align="center">
<table border="1" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border-image: none; border: 1px solid rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 143.25pt;" width="191"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
temperature
/ <sup>o</sup>C</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: solid solid solid none; border-width: 1px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 143.3pt;" width="191"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
physical
state</div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid solid; border-width: 0px 1px 1px; margin: 0px; padding: 0in 5.4pt; width: 143.25pt;" width="191"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
60.0</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 143.3pt;" width="191"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
liquid</div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid solid; border-width: 0px 1px 1px; margin: 0px; padding: 0in 5.4pt; width: 143.25pt;" width="191"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
62.0</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 143.3pt;" width="191"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
liquid</div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid solid; border-width: 0px 1px 1px; margin: 0px; padding: 0in 5.4pt; width: 143.25pt;" width="191"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
64.0</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 143.3pt;" width="191"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
liquid
– gas</div>
</td>
</tr>
<tr style="mso-yfti-irow: 4;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid solid; border-width: 0px 1px 1px; margin: 0px; padding: 0in 5.4pt; width: 143.25pt;" width="191"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
66.0</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 143.3pt;" width="191"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
liquid
– gas</div>
</td>
</tr>
<tr style="mso-yfti-irow: 5;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid solid; border-width: 0px 1px 1px; margin: 0px; padding: 0in 5.4pt; width: 143.25pt;" width="191"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
68.0</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 143.3pt;" width="191"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
gas</div>
</td>
</tr>
<tr style="mso-yfti-irow: 6; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid solid; border-width: 0px 1px 1px; margin: 0px; padding: 0in 5.4pt; width: 143.25pt;" width="191"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
70.0</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 143.3pt;" width="191"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
gas</div>
</td>
</tr>
</tbody></table>
</div>
<span style="height: 29px; margin: 37px 0px 0px 53px; position: absolute; width: 93px; z-index: 7;"></span><br />
<div style="line-height: 115%; margin: 0px;">
</div>
<span style="height: 29px; margin: 37px 0px 0px 53px; position: absolute; width: 93px; z-index: 7;">
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="29" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="93"><span style="margin: 0px; position: absolute; z-index: 7;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_029">
<div style="margin: 0px;">
<span style="font-size: 10pt; margin: 0px;">Temperature</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div style="line-height: 115%; margin: 0px;">
</div>
</span><br />
<div style="line-height: 115%; margin: 0px;">
<span style="height: 132px; margin: 54px 0px 0px 88px; position: absolute; width: 12px; z-index: 8;"><img height="132" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image001.gif" v:shapes="_x0031_030" width="12" /></span><span style="font-size: 11pt; line-height: 115%; margin: 0px;">Which graph correctly shows how temperature changes with
time for the above experiment?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td colspan="3" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<span style="height: 29px; margin: 3px 0px 0px 243px; position: absolute; width: 76px; z-index: 9;"></span><br />
<div style="margin: 0px;">
</div>
<span style="height: 29px; margin: 3px 0px 0px 243px; position: absolute; width: 76px; z-index: 9;">
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="29" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="76"><span style="margin: 0px; position: absolute; z-index: 9;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_032">
<div style="margin: 0px;">
<span style="font-size: 10pt; margin: 0px;">Time</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div style="margin: 0px;">
</div>
</span><br />
<div style="margin: 0px;">
<span style="height: 12px; margin: 9px 0px 0px 55px; position: absolute; width: 195px; z-index: 10;"><img height="12" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image002.gif" v:shapes="_x0031_034" width="195" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td colspan="3" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><span style="margin: 0px;"></span><br />
<div style="margin: 0px;">
</div>
<span style="margin: 0px;">
<table align="left" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="2" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="50"></td>
</tr>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><img height="140" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image003.gif" v:shapes="_x0031_036 _x0031_038 _x0031_039 _x0031_037" width="267" /></td>
</tr>
</tbody></table>
<div style="margin: 0px;">
</div>
</span><span style="height: 28px; margin: 4px 0px 0px 14px; position: absolute; width: 96px; z-index: 13;"><div style="margin: 0px;">
</div>
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="28" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="96"><span style="margin: 0px; position: absolute; z-index: 13;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_035">
<div style="margin: 0px;">
<span style="font-size: 10pt; margin: 0px;">Temperature</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div style="margin: 0px;">
</div>
</span>
<br />
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><br clear="ALL" style="mso-ignore: vglayout;" />
<div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td colspan="3" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><span style="margin: 0px;"></span><br />
<div style="margin: 0px;">
</div>
<span style="margin: 0px;">
<table align="left" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="3" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="50"></td>
</tr>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><img height="145" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image004.gif" v:shapes="_x0031_042 _x0031_041 _x0031_043 _x0031_044" width="267" /></td>
</tr>
</tbody></table>
<div style="margin: 0px;">
</div>
</span><span style="height: 28px; margin: 5px 0px 0px 16px; position: absolute; width: 104px; z-index: 18;"><div style="margin: 0px;">
</div>
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="28" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="104"><span style="margin: 0px; position: absolute; z-index: 18;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_040">
<div style="margin: 0px;">
<span style="font-size: 10pt; margin: 0px;">Temperature</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div style="margin: 0px;">
</div>
</span>
<br />
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><br clear="ALL" style="mso-ignore: vglayout;" />
<div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td colspan="3" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><span style="margin: 0px;"></span><br />
<div style="margin: 0px;">
</div>
<span style="margin: 0px;">
<table align="left" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="6" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="50"></td>
</tr>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><img height="146" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image005.gif" v:shapes="_x0031_047 _x0031_048 _x0031_046" width="267" /></td>
</tr>
</tbody></table>
<div style="margin: 0px;">
</div>
</span><span style="height: 28px; margin: 6px 0px 0px 15px; position: absolute; width: 103px; z-index: 24;"><div style="margin: 0px;">
</div>
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="28" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="103"><span style="margin: 0px; position: absolute; z-index: 24;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_045">
<div style="margin: 0px;">
<span style="font-size: 10pt; margin: 0px;">Temperature</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div style="margin: 0px;">
</div>
</span>
<br />
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="margin: 0px;">
<br /></div>
<div style="line-height: 150%; margin: 0px;">
<br /></div>
<div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 5;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><br clear="ALL" style="mso-ignore: vglayout;" />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">2</span></b></div>
</td>
<td colspan="6" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">The diagram shows a simple laboratory apparatus used to
prepare and collect a dry gas.</span></div>
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
<span style="height: 12px; left: 0px; margin: 254px 0px 0px 222px; position: absolute; width: 57px; z-index: 28;"><img height="12" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image006.gif" v:shapes="_x0031_049" width="57" /></span></div>
<span style="height: 30px; left: 0px; margin: 254px 0px 0px 274px; position: absolute; width: 85px; z-index: 26;"></span><br />
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
<span style="height: 30px; left: 0px; margin: 254px 0px 0px 274px; position: absolute; width: 85px; z-index: 26;">
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="30" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="85"><span style="left: 0pt; margin: 0px; position: absolute; z-index: 26;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_050">
<div style="margin: 0px;">
<span style="font-family: "arial" , "sans-serif"; font-size: 10pt; margin: 0px;">solution <b style="mso-bidi-font-weight: normal;">Q</b></span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
</span><span style="height: 29px; left: 0px; margin: 209px 0px 0px 35px; position: absolute; width: 76px; z-index: 25;"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="29" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="76"><span style="left: 0pt; margin: 0px; position: absolute; z-index: 25;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_051">
<div style="margin: 0px;">
<span style="font-family: "arial" , "sans-serif"; font-size: 10pt; margin: 0px;">solid <b style="mso-bidi-font-weight: normal;">P</b></span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
</span><br />
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
<span style="height: 27px; left: 0px; margin: 222px 0px 0px 90px; position: absolute; width: 87px; z-index: 27;"><img height="27" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image007.gif" v:shapes="_x0031_052" width="87" /></span><span style="font-size: 11pt; line-height: 115%; margin: 0px;"><img height="269" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image009.gif" v:shapes="Picture_x0020_3" width="289" /></span></div>
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
<br /></div>
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Suggest the identities of solid <b style="mso-bidi-font-weight: normal;">P</b> and solution <b style="mso-bidi-font-weight: normal;">Q</b>.</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 6;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: solid solid solid none; border-width: 1px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: solid solid solid none; border-width: 1px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 148.85pt;" valign="top" width="198"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">solid <b style="mso-bidi-font-weight: normal;">P</b></span></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: solid solid solid none; border-width: 1px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 163pt;" valign="top" width="217"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">solution <b style="mso-bidi-font-weight: normal;">Q</b></span></div>
</td>
<td colspan="3" style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 109.4pt;" valign="top" width="146"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 7;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 148.85pt;" valign="top" width="198"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">zinc oxide</span></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 163pt;" valign="top" width="217"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">sulfuric acid</span></div>
</td>
<td colspan="3" style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 109.4pt;" valign="top" width="146"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 8;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 148.85pt;" valign="top" width="198"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">lithium</span></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 163pt;" valign="top" width="217"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">water</span></div>
</td>
<td colspan="3" style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 109.4pt;" valign="top" width="146"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 9;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 148.85pt;" valign="top" width="198"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">calcium carbonate</span></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 163pt;" valign="top" width="217"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">nitric acid</span></div>
</td>
<td colspan="3" style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 109.4pt;" valign="top" width="146"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 10; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 148.85pt;" valign="top" width="198"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">copper</span></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 163pt;" valign="top" width="217"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">hydrochloric acid</span></div>
</td>
<td colspan="3" style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 109.4pt;" valign="top" width="146"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr height="0">
<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px;" width="28"></td>
<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px;" width="38"></td>
<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px;" width="198"></td>
<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px;" width="217"></td>
<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px;" width="104"></td>
<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px;" width="19"></td>
<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px;" width="23"></td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">3</span></b></div>
</td>
<td colspan="5" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px 24px 0px 0px;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">Fire-fighters
recognise four types of fires.</span></div>
<div style="line-height: 150%; margin: 0px 24px 0px 0px; text-indent: 0.5in;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">Class <b style="mso-bidi-font-weight: normal;">P</b>:<span style="margin: 0px;"> </span>Solids like wood and coal on fire.</span></div>
<div style="line-height: 150%; margin: 0px 24px 0px 0px; text-indent: 0.5in;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">Class <b style="mso-bidi-font-weight: normal;">Q</b>:<span style="margin: 0px;"> </span>Liquids like petrol, oil on fire.</span></div>
<div style="line-height: 150%; margin: 0px 24px 0px 0px; text-indent: 0.5in;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">Class <b style="mso-bidi-font-weight: normal;">R</b>:<span style="margin: 0px;"> </span>Gases like natural gas, carbon
monoxide on fire.</span></div>
<div style="line-height: 150%; margin: 0px 24px 0px 0px; text-indent: 0.5in;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">Class <b style="mso-bidi-font-weight: normal;">S</b>: <span style="margin: 0px;"> </span>Metals like sodium or potassium on
fire.</span></div>
<div style="line-height: 150%; margin: 0px 24px 0px 0px; text-indent: 0.5in;">
<br /></div>
<div style="line-height: 150%; margin: 0px 24px 0px 0px;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">Below
is a table of four substances <b style="mso-bidi-font-weight: normal;">A</b> to
<b style="mso-bidi-font-weight: normal;">D</b> with their melting and boiling
points.</span></div>
<div style="line-height: 150%; margin: 0px 24px 0px 0px;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">Which
substance at room temperature and pressure has an incorrect ‘class of fire’?</span></div>
</td>
</tr>
<tr style="mso-row-margin-right: 102.3pt; mso-yfti-irow: 1;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: solid solid solid none; border-width: 1px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: solid solid solid none; border-width: 1px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 113.4pt;" valign="top" width="151"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">melting
point/ </span><span style="font-family: "symbol"; font-size: 11pt; line-height: 150%; margin: 0px;"><span style="margin: 0px;">°</span></span><span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">C</span></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: solid solid solid none; border-width: 1px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 113.4pt;" valign="top" width="151"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">boiling point
/</span><span style="font-family: "symbol"; font-size: 11pt; line-height: 150%; margin: 0px;"><span style="margin: 0px;">°</span></span><span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">C</span></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: solid solid solid none; border-width: 1px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 92.15pt;" valign="top" width="123"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">class of fire</span></div>
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<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in;" width="136"><div style="margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-row-margin-right: 102.3pt; mso-yfti-irow: 2;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 113.4pt;" valign="top" width="151"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">+ 98</span></div>
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<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 113.4pt;" valign="top" width="151"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">+ 883</span></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 92.15pt;" valign="top" width="123"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">S</span></b></div>
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<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in;" width="136"><div style="margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-row-margin-right: 102.3pt; mso-yfti-irow: 3;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 113.4pt;" valign="top" width="151"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-family: "symbol"; font-size: 11pt; line-height: 150%; margin: 0px;"><span style="margin: 0px;">-</span></span></b><span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">184</span></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 113.4pt;" valign="top" width="151"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-family: "symbol"; font-size: 11pt; line-height: 150%; margin: 0px;"><span style="margin: 0px;">-</span></span></b><span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">164</span></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 92.15pt;" valign="top" width="123"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">R</span></b></div>
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<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in;" width="136"><div style="margin: 0px;">
<br /></div>
</td>
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<tr style="mso-row-margin-right: 102.3pt; mso-yfti-irow: 4;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
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<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 113.4pt;" valign="top" width="151"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-family: "symbol"; font-size: 11pt; line-height: 150%; margin: 0px;"><span style="margin: 0px;">-</span></span><span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;"> 117</span></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 113.4pt;" valign="top" width="151"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">+ 78</span></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 92.15pt;" valign="top" width="123"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">P</span></b></div>
</td>
<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in;" width="136"><div style="margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-row-margin-right: 102.3pt; mso-yfti-irow: 5; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 113.4pt;" valign="top" width="151"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">+ 5</span></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 113.4pt;" valign="top" width="151"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">+ 80</span></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 92.15pt;" valign="top" width="123"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">Q</span></b></div>
</td>
<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in;" width="136"><div style="margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">4</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Bromine melts at -7 <sup>o</sup>C and boils at 59 <sup>o</sup>C.
A reddish-brown solution of aqueous bromine was heated using the setup shown
below.</span></div>
<span style="height: 32px; left: 0px; margin: 221px 0px 0px 127px; position: absolute; width: 76px; z-index: 29;"></span><br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
</div>
<span style="height: 32px; left: 0px; margin: 221px 0px 0px 127px; position: absolute; width: 76px; z-index: 29;">
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="32" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="76"><span style="left: 0pt; margin: 0px; position: absolute; z-index: 29;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_054">
<div style="margin: 0px;">
<b style="mso-bidi-font-weight: normal;">X</b></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
</div>
</span><br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="height: 18px; left: 0px; margin: 240px 0px 0px 161px; position: absolute; width: 63px; z-index: 31;"><img height="18" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image010.gif" v:shapes="_x0031_055" width="63" /></span></div>
<span style="height: 32px; left: 0px; margin: 222px 0px 0px 427px; position: absolute; width: 76px; z-index: 30;"></span><br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
</div>
<span style="height: 32px; left: 0px; margin: 222px 0px 0px 427px; position: absolute; width: 76px; z-index: 30;">
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="32" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="76"><span style="left: 0pt; margin: 0px; position: absolute; z-index: 30;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_056">
<div style="margin: 0px;">
<b style="mso-bidi-font-weight: normal;">Y</b></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
</div>
</span><br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="height: 23px; left: 0px; margin: 236px 0px 0px 377px; position: absolute; width: 55px; z-index: 32;"><img height="23" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image011.gif" v:shapes="_x0031_057" width="55" /></span><span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="330" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image013.jpg" v:shapes="_x0000_i1062" width="228" /></span></div>
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">What are the colours of solutions <b style="mso-bidi-font-weight: normal;">X</b> and <b style="mso-bidi-font-weight: normal;">Y</b> when the
reading on the thermometer shows 60<sup>o</sup>C?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: solid solid solid none; border-width: 1px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: solid solid solid none; border-width: 1px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 155.95pt;" valign="top" width="208"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">solution <b style="mso-bidi-font-weight: normal;">X</b></span></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: solid solid solid none; border-width: 1px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 141.75pt;" valign="top" width="189"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">solution <b style="mso-bidi-font-weight: normal;">Y</b></span></div>
</td>
<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 123.55pt;" valign="top" width="165"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 155.95pt;" valign="top" width="208"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">reddish brown</span></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 141.75pt;" valign="top" width="189"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">colourless</span></div>
</td>
<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 123.55pt;" valign="top" width="165"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 155.95pt;" valign="top" width="208"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">colourless</span></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 141.75pt;" valign="top" width="189"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">reddish brown</span></div>
</td>
<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 123.55pt;" valign="top" width="165"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 155.95pt;" valign="top" width="208"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">red</span></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 141.75pt;" valign="top" width="189"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">brown</span></div>
</td>
<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 123.55pt;" valign="top" width="165"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 5; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 155.95pt;" valign="top" width="208"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">brown</span></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; margin: 0px; padding: 0in 5.4pt; width: 141.75pt;" valign="top" width="189"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">red</span></div>
</td>
<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 123.55pt;" valign="top" width="165"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div style="line-height: 150%; margin: 0px;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">5</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">Which one of
the following is true of a compound?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">Its constituents can be separated by
physical methods.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">A compound is always soluble in
water.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">Its constituents are present in fixed
proportions.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; layout-grid-mode: line; line-height: 150%; margin: 0px;">Its properties are similar to those
of its constituents.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<span style="font-family: "times new roman" , "serif"; font-size: 12pt; margin: 0px;"><br clear="all" style="mso-special-character: line-break; page-break-before: always;" />
</span>
<br />
<div style="margin: 0px;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">6</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">The
table shows some information about the solubilities of three solids.</span></div>
<table border="1" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px; width: 559px;">
<tbody>
<tr style="height: 17.5pt; mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border-image: none; border: 1px solid rgb(0, 0, 0); height: 17.5pt; margin: 0px; padding: 0in 5.4pt; width: 139.6pt;" valign="top" width="186"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
solid</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: solid solid solid none; border-width: 1px 1px 1px 0px; height: 17.5pt; margin: 0px; padding: 0in 5.4pt; width: 139.65pt;" valign="top" width="186"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
solubility
in water</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: solid solid solid none; border-width: 1px 1px 1px 0px; height: 17.5pt; margin: 0px; padding: 0in 5.4pt; width: 139.65pt;" valign="top" width="186"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
solubility
in ethanol</div>
</td>
</tr>
<tr style="height: 52.5pt; mso-yfti-irow: 1; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid solid; border-width: 0px 1px 1px; height: 52.5pt; margin: 0px; padding: 0in 5.4pt; width: 139.6pt;" valign="top" width="186"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;">J</b></div>
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;">K</b></div>
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;">L</b></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; height: 52.5pt; margin: 0px; padding: 0in 5.4pt; width: 139.65pt;" valign="top" width="186"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
insoluble</div>
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
soluble</div>
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
insoluble</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; height: 52.5pt; margin: 0px; padding: 0in 5.4pt; width: 139.65pt;" valign="top" width="186"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
soluble</div>
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
insoluble</div>
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
insoluble</div>
</td>
</tr>
</tbody></table>
<div style="line-height: 150%; margin: 0px; text-align: justify; text-indent: -0.9pt;">
<br /></div>
<div style="line-height: 150%; margin: 0px; text-align: justify; text-indent: -0.9pt;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">The following
operations could be carried out to obtain pure <b style="mso-bidi-font-weight: normal;">K</b> from a mixture of <br />
<b style="mso-bidi-font-weight: normal;">J</b>, <b style="mso-bidi-font-weight: normal;">K</b> and <b style="mso-bidi-font-weight: normal;">L</b>.</span></div>
<div style="line-height: 150%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><span style="margin: 0px;"> </span>1 <span style="margin: 0px;"> </span>filter</span></div>
<div style="line-height: 150%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><span style="margin: 0px;"> </span>2 <span style="margin: 0px;"> </span>evaporate filtrate to dryness</span></div>
<div style="line-height: 150%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><span style="margin: 0px;"> </span>3 <span style="margin: 0px;"> </span>add ethanol</span></div>
<div style="line-height: 150%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><span style="margin: 0px;"> </span>4 <span style="margin: 0px;"> </span>add water</span></div>
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">In what order should the operations
be carried out?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">1, 2, 3, 4</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">3, 1, 2 (omit stage 4)</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">4, 3, 1, 2</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">4, 1, 2 (omit stage 3)</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">7</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">The diagram shows how a particle is deflected when it
enters the field between two oppositely charged plates.</span></div>
<span style="margin: 0px;"></span><br />
<div style="line-height: 115%; margin: 0px;">
</div>
<span style="margin: 0px;">
<table align="left" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="13" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="110"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="50"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="403"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="1"></td>
</tr>
<tr>
<td height="79" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td align="left" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" valign="top"><img height="79" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image014.gif" v:shapes="_x0031_061 _x0031_065 _x0031_060 _x0031_059" width="403" /></td>
</tr>
<tr>
<td height="7" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
</tr>
<tr>
<td height="102" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td align="left" colspan="3" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" valign="top"><img height="102" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image015.gif" v:shapes="_x0031_070 _x0031_063 _x0031_064 _x0031_066 _x0031_068 _x0031_067 _x0031_062 _x0031_069" width="454" /></td>
</tr>
</tbody></table>
<div style="line-height: 115%; margin: 0px;">
</div>
</span><br />
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 150%; margin: 0px;">
<br /></div>
<br clear="ALL" style="mso-ignore: vglayout;" />
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Which statement could be true about the particle?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">It is the nucleus of an argon atom.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">It is a molecule of hydrogen.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">It is an ion of sulfur.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">It is an atom of sodium.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">8</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">The table below shows three pairs of structures.</span></div>
<span style="height: 40px; left: 0px; margin: 327px 0px 0px 31px; position: absolute; width: 28px; z-index: 47;"></span><br />
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
<span style="height: 40px; left: 0px; margin: 327px 0px 0px 31px; position: absolute; width: 28px; z-index: 47;">
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td bgcolor="white" height="40" style="background: rgb(255, 255, 255); border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="28"><span style="left: 0pt; margin: 0px; position: absolute; z-index: 47;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_071">
<div style="margin: 0px;">
<b style="mso-bidi-font-weight: normal;">R</b></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
</span><span style="height: 40px; left: 0px; margin: 195px 0px 0px 31px; position: absolute; width: 28px; z-index: 46;"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td bgcolor="white" height="40" style="background: rgb(255, 255, 255); border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="28"><span style="left: 0pt; margin: 0px; position: absolute; z-index: 46;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_072">
<div style="margin: 0px;">
<b style="mso-bidi-font-weight: normal;">Q</b></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
</span><span style="height: 40px; left: 0px; margin: 63px 0px 0px 31px; position: absolute; width: 28px; z-index: 45;"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td bgcolor="white" height="40" style="background: rgb(255, 255, 255); border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="28"><span style="left: 0pt; margin: 0px; position: absolute; z-index: 45;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_073">
<div style="margin: 0px;">
<b style="mso-bidi-font-weight: normal;">P</b></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
</span><br />
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;"><img height="414" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image017.jpg" v:shapes="_x0000_i1061" width="552" /></span></div>
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Which pair(s) have similar chemical properties but
different physical properties?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">P</span></b><span style="font-size: 11pt; line-height: 150%; margin: 0px;"> only</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">P </span></b><span style="font-size: 11pt; line-height: 150%; margin: 0px;">and <b style="mso-bidi-font-weight: normal;">Q</b> only</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">P</span></b><span style="font-size: 11pt; line-height: 150%; margin: 0px;"> and <b style="mso-bidi-font-weight: normal;">R</b> only</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">P</span></b><span style="font-size: 11pt; line-height: 150%; margin: 0px;">, <b style="mso-bidi-font-weight: normal;">Q</b> and <b style="mso-bidi-font-weight: normal;">R</b></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">9</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Fibreglass can be considered to be
a mixture of ionic oxides and giant covalent oxides. Which one of the
following is <b style="mso-bidi-font-weight: normal;">not</b> a constituent of
fibreglass?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Al<sub>2</sub>O<sub>3</sub></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Na<sub>2</sub>O</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">P<sub>4</sub>O<sub>10</sub></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">SiO<sub>2</sub></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<span style="font-family: "times new roman" , "serif"; font-size: 12pt; margin: 0px;"><br clear="all" style="mso-special-character: line-break; page-break-before: always;" />
</span>
<br />
<div style="margin: 0px;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">10</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Boron nitride is used as a solid lubricant in industrial
machines up to temperatures of <br />
1000 <sup>o</sup>C.Which of the following is the most likely structure of
boron nitride?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 219.7pt;" valign="top" width="293"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 198.45pt;" valign="top" width="265"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 219.7pt;" valign="top" width="293"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="162" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image019.jpg" v:shapes="_x0000_i1060" width="183" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 198.45pt;" valign="top" width="265"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="157" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image020.jpg" v:shapes="_x0000_i1059" width="264" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 219.7pt;" valign="top" width="293"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 198.45pt;" valign="top" width="265"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 219.7pt;" valign="top" width="293"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="151" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image022.jpg" v:shapes="_x0000_i1058" width="163" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 198.45pt;" valign="top" width="265"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="149" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image023.jpg" v:shapes="_x0000_i1057" width="183" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">11</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px; text-align: justify;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">120 cm<sup>3</sup> of polluted air
is passed through limewater so that all the carbon dioxide is precipitated as
calcium carbonate. The mass of calcium carbonate formed is 0.005 g. <br />
What is the percentage by volume, of carbon dioxide in the air sample?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">1.0 %</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">0.5 %</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">0.05 %</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">0.01 %</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">12</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Which of the following contains the largest number of
molecules?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">4.4 g of carbon dioxide gas<span style="margin: 0px;"> </span></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">0.05 mol of hydrogen gas</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">12 dm<sup>3</sup> of oxygen gas<span style="margin: 0px;"> </span></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">1200 cm<sup>3</sup> of water vapour</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<span style="font-family: "times new roman" , "serif"; font-size: 12pt; margin: 0px;"><br clear="all" style="mso-special-character: line-break; page-break-before: always;" />
</span>
<br />
<div style="margin: 0px;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">13</span></b></div>
</td>
<td colspan="7" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">The diagram shows three balloons filled with 240 g of
different gases.</span></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<span style="height: 32px; left: 0px; margin: 21px 0px 0px 139px; position: absolute; width: 76px; z-index: 48;"></span><br />
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
<span style="height: 32px; left: 0px; margin: 21px 0px 0px 139px; position: absolute; width: 76px; z-index: 48;">
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="32" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="76"><span style="left: 0pt; margin: 0px; position: absolute; z-index: 48;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_079">
<div align="center" style="margin: 0px; text-align: center;">
<span style="font-family: "calibri" , "sans-serif"; margin: 0px;">neon</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
</span><span style="height: 32px; left: 0px; margin: 23px 0px 0px 258px; position: absolute; width: 75px; z-index: 49;"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="32" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="75"><span style="left: 0pt; margin: 0px; position: absolute; z-index: 49;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_080">
<div align="center" style="margin: 0px; text-align: center;">
<span style="font-family: "calibri" , "sans-serif"; margin: 0px;">argon</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
</span><span style="height: 33px; left: 0px; margin: 21px 0px 0px 370px; position: absolute; width: 87px; z-index: 50;"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="33" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="87"><span style="left: 0pt; margin: 0px; position: absolute; z-index: 50;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_081">
<div align="center" style="margin: 0px; text-align: center;">
<span style="font-family: "calibri" , "sans-serif"; margin: 0px;">bromine</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
</span><br />
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;"><img height="136" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image025.jpg" v:shapes="_x0000_i1056" width="116" /><img height="136" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image025.jpg" v:shapes="_x0000_i1055" width="116" /><img height="136" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image025.jpg" v:shapes="_x0000_i1054" width="116" /></span></div>
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">What is the ratio of the number of gas particles present in
each balloon?</span></div>
</td>
</tr>
<tr style="mso-row-margin-right: 236.95pt; mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 42.55pt;" valign="top" width="57"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">neon</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.25pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 42.5pt;" valign="top" width="57"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">argon</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 56.7pt;" valign="top" width="76"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">bromine</span></div>
</td>
<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in;" width="316"><div style="margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-row-margin-right: 236.95pt; mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 42.55pt;" valign="top" width="57"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">1</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.25pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">:</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 42.5pt;" valign="top" width="57"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">1</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">:</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 56.7pt;" valign="top" width="76"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">1</span></div>
</td>
<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in;" width="316"><div style="margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-row-margin-right: 236.95pt; mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 42.55pt;" valign="top" width="57"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">1</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.25pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">:</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 42.5pt;" valign="top" width="57"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">2</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">:</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 56.7pt;" valign="top" width="76"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">4</span></div>
</td>
<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in;" width="316"><div style="margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-row-margin-right: 236.95pt; mso-yfti-irow: 4;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 42.55pt;" valign="top" width="57"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">2</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.25pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">:</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 42.5pt;" valign="top" width="57"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">1</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">:</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 56.7pt;" valign="top" width="76"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">4</span></div>
</td>
<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in;" width="316"><div style="margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-row-margin-right: 236.95pt; mso-yfti-irow: 5; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 42.55pt;" valign="top" width="57"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">8</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.25pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">:</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 42.5pt;" valign="top" width="57"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">4</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">:</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 56.7pt;" valign="top" width="76"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">1</span></div>
</td>
<td style="background-color: transparent; border-image: none; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in;" width="316"><div style="margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">14</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">A solid <b style="mso-bidi-font-weight: normal;">X</b> is
added to three different test tubes containing hydrochloric acid, sodium
hydroxide and water respectively. The following results are obtained.</span></div>
<table border="1" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px;">
<tbody>
<tr style="height: 19.4pt; mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border-image: none; border: 1px solid rgb(0, 0, 0); height: 19.4pt; margin: 0px; padding: 0in 5.4pt; width: 104.75pt;" valign="top" width="140"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: solid solid solid none; border-width: 1px 1px 1px 0px; height: 19.4pt; margin: 0px; padding: 0in 5.4pt; width: 104.8pt;" valign="top" width="140"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
hydrochloric
acid</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: solid solid solid none; border-width: 1px 1px 1px 0px; height: 19.4pt; margin: 0px; padding: 0in 5.4pt; width: 104.8pt;" valign="top" width="140"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
sodium
hydroxide</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: solid solid solid none; border-width: 1px 1px 1px 0px; height: 19.4pt; margin: 0px; padding: 0in 5.4pt; width: 104.8pt;" valign="top" width="140"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
water</div>
</td>
</tr>
<tr style="height: 19.4pt; mso-yfti-irow: 1; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid solid; border-width: 0px 1px 1px; height: 19.4pt; margin: 0px; padding: 0in 5.4pt; width: 104.75pt;" valign="top" width="140"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
observation</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; height: 19.4pt; margin: 0px; padding: 0in 5.4pt; width: 104.8pt;" valign="top" width="140"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
solid
dissolves</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; height: 19.4pt; margin: 0px; padding: 0in 5.4pt; width: 104.8pt;" valign="top" width="140"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
solid
dissolves</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; height: 19.4pt; margin: 0px; padding: 0in 5.4pt; width: 104.8pt;" valign="top" width="140"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
solid
is insoluble</div>
</td>
</tr>
</tbody></table>
<div style="line-height: 150%; margin: 0px;">
<br /></div>
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Which of the following could be solid <b style="mso-bidi-font-weight: normal;">X</b>?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">magnesium oxide</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">zinc oxide</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">sodium oxide</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">iron(II) oxide</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">15</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">In which reaction is calcium hydroxide <b style="mso-bidi-font-weight: normal;">not</b> acting as a base?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Ca(OH)<sub>2</sub> + Na<sub>2</sub>SO<sub>4</sub></span><span style="font-family: "wingdings"; font-size: 11pt; line-height: 150%; margin: 0px;"><span style="margin: 0px;">à</span></span><span style="font-size: 11pt; line-height: 150%; margin: 0px;"> CaSO<sub>4</sub> + 2 NaOH</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Ca(OH)<sub>2</sub> + CO<sub>2</sub></span><span style="font-family: "wingdings"; font-size: 11pt; line-height: 150%; margin: 0px;"><span style="margin: 0px;">à</span></span><span style="font-size: 11pt; line-height: 150%; margin: 0px;"> CaCO<sub>3</sub> + H<sub>2</sub>O</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Ca(OH)<sub>2</sub> + 2 HC<i style="mso-bidi-font-style: normal;">l</i></span><span style="font-family: "wingdings"; font-size: 11pt; line-height: 150%; margin: 0px;"><span style="margin: 0px;">à</span></span><span style="font-size: 11pt; line-height: 150%; margin: 0px;"> CaC<i style="mso-bidi-font-style: normal;">l</i><sub>2</sub> + H<sub>2</sub>O</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Ca(OH)<sub>2</sub> + 2 NH<sub>4</sub>NO<sub>3</sub></span><span style="font-family: "wingdings"; font-size: 11pt; line-height: 150%; margin: 0px;"><span style="margin: 0px;">à</span></span><span style="font-size: 11pt; line-height: 150%; margin: 0px;"> Ca(NO<sub>3</sub>)<sub>2</sub> + 2 NH<sub>3</sub> + H<sub>2</sub>O</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<span style="font-family: "times new roman" , "serif"; font-size: 12pt; margin: 0px;"><br clear="all" style="mso-special-character: line-break; page-break-before: always;" />
</span>
<br />
<div style="margin: 0px;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">16</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Which graph shows the solution formed when 1 mol of a <b style="mso-bidi-font-weight: normal;">weak acid</b>, HX is dissolved in <br />
1 dm<sup>3</sup> of water?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;"><img height="187" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image027.jpg" v:shapes="Picture_x0020_9" width="505" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="189" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image029.jpg" v:shapes="Picture_x0020_11" width="504" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="185" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image031.jpg" v:shapes="Picture_x0020_13" width="504" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="188" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image033.jpg" v:shapes="Picture_x0020_15" width="505" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<span style="font-family: "times new roman" , "serif"; font-size: 12pt; margin: 0px;"><br clear="all" style="mso-special-character: line-break; page-break-before: always;" />
</span>
<br />
<div style="margin: 0px;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">17</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px; text-align: justify;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">The table below gives information
about three indicators.</span></div>
<table border="1" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px;">
<tbody>
<tr style="height: 25.05pt; mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border-image: none; border: 1px solid rgb(0, 0, 0); height: 25.05pt; margin: 0px; padding: 0in 5.4pt; width: 106.3pt;" valign="top" width="142"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
indicator</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: solid solid solid none; border-width: 1px 1px 1px 0px; height: 25.05pt; margin: 0px; padding: 0in 5.4pt; width: 178.65pt;" valign="top" width="238"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
colour
change from low pH to high pH</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: solid solid solid none; border-width: 1px 1px 1px 0px; height: 25.05pt; margin: 0px; padding: 0in 5.4pt; width: 153.05pt;" valign="top" width="204"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
pH
at which colour change takes place</div>
</td>
</tr>
<tr style="height: 14.1pt; mso-yfti-irow: 1;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid; border-width: 0px 1px; height: 14.1pt; margin: 0px; padding: 0in 5.4pt; width: 106.3pt;" valign="top" width="142"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
methyl
orange</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; height: 14.1pt; margin: 0px; padding: 0in 5.4pt; width: 178.65pt;" valign="top" width="238"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
red
<span style="font-family: "wingdings"; margin: 0px;"><span style="margin: 0px;">à</span></span>
yellow</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; height: 14.1pt; margin: 0px; padding: 0in 5.4pt; width: 153.05pt;" valign="top" width="204"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
4</div>
</td>
</tr>
<tr style="height: 14.1pt; mso-yfti-irow: 2;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid; border-width: 0px 1px; height: 14.1pt; margin: 0px; padding: 0in 5.4pt; width: 106.3pt;" valign="top" width="142"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
phenolphthalein</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; height: 14.1pt; margin: 0px; padding: 0in 5.4pt; width: 178.65pt;" valign="top" width="238"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
colourless
<span style="font-family: "wingdings"; margin: 0px;"><span style="margin: 0px;">à</span></span>
pink</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid none none; border-width: 0px 1px 0px 0px; height: 14.1pt; margin: 0px; padding: 0in 5.4pt; width: 153.05pt;" valign="top" width="204"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
9</div>
</td>
</tr>
<tr style="height: 14.1pt; mso-yfti-irow: 3; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-image: none; border-style: none solid solid; border-width: 0px 1px 1px; height: 14.1pt; margin: 0px; padding: 0in 5.4pt; width: 106.3pt;" valign="top" width="142"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
bromothymol
blue</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; height: 14.1pt; margin: 0px; padding: 0in 5.4pt; width: 178.65pt;" valign="top" width="238"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
yellow
<span style="font-family: "wingdings"; margin: 0px;"><span style="margin: 0px;">à</span></span>
blue</div>
</td>
<td style="background-color: transparent; border-color: rgb(0, 0, 0); border-style: none solid solid none; border-width: 0px 1px 1px 0px; height: 14.1pt; margin: 0px; padding: 0in 5.4pt; width: 153.05pt;" valign="top" width="204"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
6.5</div>
</td>
</tr>
</tbody></table>
<div style="line-height: 150%; margin: 0px; text-align: justify;">
<br /></div>
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">If equal volumes of these three
indicators were mixed, which colour would be observed at pH 5?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">blue</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">green</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">yellow </span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">orange</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div style="margin: 0px;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">18</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">When a few drops of solution <b style="mso-bidi-font-weight: normal;">X</b> are added to an aqueous solution of Fe<sup>2+</sup> ions, the
green solution turns yellow. Which statement about <b style="mso-bidi-font-weight: normal;">X</b> is true?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">X</span></b><span style="font-size: 11pt; line-height: 150%; margin: 0px;"> decolourises aqueous potassium
manganate(VII).</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">X</span></b><span style="font-size: 11pt; line-height: 150%; margin: 0px;"> changes the colour of Universal
Indicator from green to red.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">X</span></b><span style="font-size: 11pt; line-height: 150%; margin: 0px;"> produces a yellow precipitate with
potassium iodide.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">X</span></b><span style="font-size: 11pt; line-height: 150%; margin: 0px;"> forms a brown solution with
aqueous potassium iodide.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">19</span></b></div>
</td>
<td colspan="2" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">Which of the following is an observation of a redox
reaction?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 421.25pt;" valign="top" width="562"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Bubbles of gas observed when acid reacts with solid lumps
of magnesium carbonate.</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 421.25pt;" valign="top" width="562"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Solution turns blue when copper(II) sulfate crystals are
added to hydrochloric acid.</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 421.25pt;" valign="top" width="562"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Blue precipitate formed when aqueous ammonia is added to
copper(II) nitrate solution.</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 421.25pt;" valign="top" width="562"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Aqueous bromine is decolourised when ethene gas is bubbled
into it.</span></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">20</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">Which of the following does <b style="mso-bidi-font-weight: normal;">not</b> take place in the blast furnace in the extraction of iron?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">C + O<sub>2</sub></span><span style="font-family: "wingdings"; font-size: 11pt; line-height: 150%; margin: 0px;"><span style="margin: 0px;">à</span></span><span style="font-size: 11pt; line-height: 150%; margin: 0px;"> CO<sub>2</sub></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">CaSiO<sub>3</sub></span><span style="font-family: "wingdings"; font-size: 11pt; line-height: 150%; margin: 0px;"><span style="margin: 0px;">à</span></span><span style="font-size: 11pt; line-height: 150%; margin: 0px;"> CaO+ SiO<sub>2</sub></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">C + CO<sub>2</sub></span><span style="font-family: "wingdings"; font-size: 11pt; line-height: 150%; margin: 0px;"><span style="margin: 0px;">à</span></span><span style="font-size: 11pt; line-height: 150%; margin: 0px;"> 2 CO</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Fe<sub>2</sub>O<sub>3</sub> + 3 CO </span><span style="font-family: "wingdings"; font-size: 11pt; line-height: 150%; margin: 0px;"><span style="margin: 0px;">à</span></span><span style="font-size: 11pt; line-height: 150%; margin: 0px;"> 2 Fe + 3 CO<sub>2</sub></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">21</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">Which chart best represents the composition of a galvanized
steel roof?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><span style="margin: 0px; position: relative; z-index: 52;"><span style="height: 71px; left: 110px; margin: 0px; position: absolute; top: -1px; width: 138px;"></span></span><br />
<div style="line-height: 115%; margin: 0px;">
</div>
<span style="margin: 0px; position: relative; z-index: 52;"><span style="height: 71px; left: 110px; margin: 0px; position: absolute; top: -1px; width: 138px;">
<table align="left" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="0" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="0"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="23"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="23"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="92"></td>
</tr>
<tr>
<td height="9" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td align="left" colspan="2" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" valign="top"><img height="9" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image034.gif" v:shapes="_x0031_091" width="46" /></td>
</tr>
<tr>
<td height="33" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
</tr>
<tr>
<td height="29" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td align="left" colspan="2" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" valign="top"><img height="29" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image035.gif" v:shapes="_x0031_092 _x0031_093" width="115" /></td>
</tr>
</tbody></table>
<div style="line-height: 115%; margin: 0px;">
</div>
</span></span><span style="height: 28px; margin: 4px 0px 0px 152px; position: absolute; width: 87px; z-index: 51;"><div style="line-height: 115%; margin: 0px;">
</div>
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="28" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="87"><span style="margin: 0px; position: absolute; z-index: 51;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_089">
<div style="margin: 0px;">
<span style="font-family: "calibri" , "sans-serif"; font-size: 10pt; margin: 0px;">carbon</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div style="line-height: 115%; margin: 0px;">
</div>
</span><br />
<div style="line-height: 115%; margin: 0px;">
<span style="height: 118px; margin: 15px 0px 0px 34px; position: absolute; width: 116px; z-index: -109;"><img height="118" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image036.gif" v:shapes="_x0031_090" width="116" /></span></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><br clear="ALL" style="mso-ignore: vglayout;" />
<div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><span style="margin: 0px;"></span><br />
<div style="line-height: 115%; margin: 0px;">
</div>
<span style="margin: 0px;">
<table align="left" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="7" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="113"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="23"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="23"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="90"></td>
</tr>
<tr>
<td height="9" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td align="left" colspan="2" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" valign="top"><img height="9" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image037.gif" v:shapes="_x0031_095" width="46" /></td>
</tr>
<tr>
<td height="31" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
</tr>
<tr>
<td height="29" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td align="left" colspan="2" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" valign="top"><img height="29" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image038.gif" v:shapes="_x0031_098 _x0031_096" width="113" /></td>
</tr>
</tbody></table>
<div style="line-height: 115%; margin: 0px;">
</div>
</span><span style="height: 29px; margin: 13px 0px 0px 153px; position: absolute; width: 88px; z-index: 56;"><div style="line-height: 115%; margin: 0px;">
</div>
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="29" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="88"><span style="margin: 0px; position: absolute; z-index: 56;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_094">
<div style="margin: 0px;">
<span style="font-family: "calibri" , "sans-serif"; font-size: 10pt; margin: 0px;">iron</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div style="line-height: 115%; margin: 0px;">
</div>
</span>
<br />
<div style="line-height: 115%; margin: 0px;">
<span style="height: 118px; margin: 3px 0px 0px 37px; position: absolute; width: 116px; z-index: -108;"><img height="118" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image039.gif" v:shapes="_x0031_097" width="116" /></span></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><br clear="ALL" style="mso-ignore: vglayout;" />
<div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><span style="margin: 0px;"></span><br />
<div style="line-height: 115%; margin: 0px;">
</div>
<span style="margin: 0px;">
<table align="left" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="0" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="96"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="17"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="137"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="4"></td>
</tr>
<tr>
<td height="46" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td align="left" colspan="2" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" valign="top"><img height="46" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image040.gif" v:shapes="_x0031_100 _x0031_101 _x0031_103" width="141" /></td>
</tr>
<tr>
<td height="3" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
</tr>
<tr>
<td height="37" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td align="left" colspan="2" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" valign="top"><img height="37" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image041.gif" v:shapes="_x0031_104 _x0031_105 _x0031_106" width="154" /></td>
</tr>
</tbody></table>
<div style="line-height: 115%; margin: 0px;">
</div>
</span><span style="height: 29px; margin: 4px 0px 0px 150px; position: absolute; width: 88px; z-index: 62;"><div style="line-height: 115%; margin: 0px;">
</div>
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="29" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="88"><span style="margin: 0px; position: absolute; z-index: 62;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_099">
<div style="margin: 0px;">
<span style="font-family: "calibri" , "sans-serif"; font-size: 10pt; margin: 0px;">zinc</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div style="line-height: 115%; margin: 0px;">
</div>
</span>
<br />
<div style="line-height: 115%; margin: 0px;">
<span style="height: 119px; margin: 7px 0px 0px 40px; position: absolute; width: 116px; z-index: -107;"><img height="119" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image042.gif" v:shapes="_x0031_102" width="116" /></span></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><br clear="ALL" style="mso-ignore: vglayout;" />
<div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><span style="height: 29px; margin: 0px 0px 0px 150px; position: absolute; width: 87px; z-index: 69;"></span><br />
<div style="line-height: 115%; margin: 0px;">
</div>
<span style="height: 29px; margin: 0px 0px 0px 150px; position: absolute; width: 87px; z-index: 69;">
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="29" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="87"><span style="margin: 0px; position: absolute; z-index: 69;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_107">
<div style="margin: 0px;">
<span style="font-family: "calibri" , "sans-serif"; font-size: 10pt; margin: 0px;">zinc</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div style="line-height: 115%; margin: 0px;">
</div>
</span><span style="margin: 0px;"><div style="line-height: 115%; margin: 0px;">
</div>
<table align="left" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="7" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="99"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="57"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="8"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="3"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="84"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="3"></td>
</tr>
<tr>
<td height="28" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td colspan="3" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td colspan="2" height="28" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="87"><span style="margin: 0px; position: absolute; z-index: 68;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_111">
<div style="margin: 0px;">
<span style="font-family: "calibri" , "sans-serif"; font-size: 10pt; margin: 0px;">iron</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
<tr>
<td height="12" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
</tr>
<tr>
<td height="13" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td align="left" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" valign="top"><img height="13" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image043.gif" v:shapes="_x0031_113" width="57" /></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td colspan="2" height="29" rowspan="2" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="87"><span style="margin: 0px; position: absolute; z-index: 67;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_114">
<div style="margin: 0px;">
<span style="font-family: "calibri" , "sans-serif"; font-size: 10pt; margin: 0px;">carbon</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
<tr>
<td height="16" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
</tr>
</tbody></table>
<div style="line-height: 115%; margin: 0px;">
</div>
</span><br />
<div style="line-height: 115%; margin: 0px;">
<span style="height: 19px; margin: 42px 0px 0px 136px; position: absolute; width: 39px; z-index: 71;"><img height="19" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image044.gif" v:shapes="_x0031_108" width="39" /></span><span style="height: 23px; margin: 16px 0px 0px 113px; position: absolute; width: 43px; z-index: 70;"><img height="23" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image045.gif" v:shapes="_x0031_109" width="43" /></span><span style="height: 20px; margin: 81px 0px 0px 132px; position: absolute; width: 38px; z-index: 72;"><img height="20" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image046.gif" v:shapes="_x0031_110" width="38" /></span></div>
<div style="line-height: 115%; margin: 0px;">
<span style="height: 118px; margin: 1px 0px 0px 42px; position: absolute; width: 117px; z-index: -106;"><img height="118" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image047.gif" v:shapes="_x0031_112" width="117" /></span></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<span style="font-family: "times new roman" , "serif"; font-size: 12pt; margin: 0px;"><br clear="all" style="mso-special-character: line-break; page-break-before: always;" />
</span>
<br />
<div style="margin: 0px;">
<br /></div>
<br clear="ALL" style="mso-ignore: vglayout;" />
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">22</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">The graph shows the percentage of metals recycled and mined
in the United States in 2007.</span></div>
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
<span style="color: black; font-size: 11pt; line-height: 115%; margin: 0px;"><img height="225" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image049.gif" v:shapes="Picture_x0020_26" width="289" /></span></div>
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Which of the following statements may be true?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Demand for nickel is higher than for copper.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">More pollution is generated when copper is recycled
compared to iron.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Recycling zinc is cheaper than extracting zinc from its
ore.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Few people know about the benefits of recycling tin
compared to zinc.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div style="line-height: 150%; margin: 0px;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">23</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Element <b style="mso-bidi-font-weight: normal;">X</b> is
extracted by the electrolysis of a molten compound of elements <b style="mso-bidi-font-weight: normal;">X</b> and <b style="mso-bidi-font-weight: normal;">Y</b>.</span></div>
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">The electrode reactions are shown below.</span></div>
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; margin: 0px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 241.85pt;" valign="top" width="322"><div style="line-height: 150%; margin: 0px;">
<u>At the cathode:</u></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 241.9pt;" valign="top" width="323"><div style="line-height: 150%; margin: 0px;">
<u>At the anode:</u></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 241.85pt;" valign="top" width="322"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;">X</b><sup>2+</sup> + 2 e<sup>-</sup><span style="font-family: "wingdings"; margin: 0px;"><span style="margin: 0px;">à</span></span><b style="mso-bidi-font-weight: normal;">X</b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 241.9pt;" valign="top" width="323"><div style="line-height: 150%; margin: 0px;">
2 <b style="mso-bidi-font-weight: normal;">Y</b><sup>2-</sup><span style="font-family: "wingdings"; margin: 0px;"><span style="margin: 0px;">à</span></span><b style="mso-bidi-font-weight: normal;">Y</b><sub>2</sub> + 4 e<sup>-</sup></div>
</td>
</tr>
</tbody></table>
<div style="line-height: 150%; margin: 0px;">
<br /></div>
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Which of the following could be the compound?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">calcium chloride</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">copper(II) chloride</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">sodium oxide</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">lead(II) oxide</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<span style="font-family: "times new roman" , "serif"; font-size: 12pt; margin: 0px;"><br clear="all" style="mso-special-character: line-break; page-break-before: always;" />
</span>
<br />
<div style="margin: 0px;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">24</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">The diagram shown is <b style="mso-bidi-font-weight: normal;">not
</b>complete.</span></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<span style="height: 48px; left: 0px; margin: 167px 0px 0px 43px; position: absolute; width: 104px; z-index: 73;"></span><br />
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
<span style="height: 48px; left: 0px; margin: 167px 0px 0px 43px; position: absolute; width: 104px; z-index: 73;">
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="48" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="104"><span style="left: 0pt; margin: 0px; position: absolute; z-index: 73;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_116">
<div style="margin: 0px;">
<span style="font-family: "arial" , "sans-serif"; font-size: 11pt; margin: 0px;">graphite electrodes</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
</span><br />
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
<span style="height: 35px; left: 0px; margin: 154px 0px 0px 126px; position: absolute; width: 86px; z-index: 74;"><img height="35" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image050.gif" v:shapes="_x0031_117" width="86" /></span><span style="height: 85px; left: 0px; margin: 106px 0px 0px 126px; position: absolute; width: 122px; z-index: 75;"><img height="85" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image051.gif" v:shapes="_x0031_118" width="122" /></span><span style="font-size: 11pt; line-height: 115%; margin: 0px;"><img height="263" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image053.jpg" v:shapes="_x0000_i1048" width="284" /></span></div>
<div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">What would be shown at <b style="mso-bidi-font-weight: normal;">X</b>
after the solution has been electrolysed for some time?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 212.65pt;" valign="top" width="284"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 205.5pt;" valign="top" width="274"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 212.65pt;" valign="top" width="284"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="123" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image055.jpg" v:shapes="_x0000_i1047" width="148" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 205.5pt;" valign="top" width="274"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="123" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image056.jpg" v:shapes="_x0000_i1046" width="150" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 212.65pt;" valign="top" width="284"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 205.5pt;" valign="top" width="274"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 212.65pt;" valign="top" width="284"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="123" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image057.jpg" v:shapes="_x0000_i1045" width="145" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 205.5pt;" valign="top" width="274"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="123" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image058.jpg" v:shapes="_x0000_i1044" width="149" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div style="line-height: 150%; margin: 0px;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">25</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Rubidium is below potassium in the Periodic Table.</span></div>
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Which statement about rubidium is likely to be true?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">It has a higher melting point than potassium.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">It reacts slowly with water.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">It forms an insoluble salt when reacted with hydrochloric
acid.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">It is so soft that it can be cut with a knife.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<span style="font-family: "times new roman" , "serif"; font-size: 12pt; margin: 0px;"><br clear="all" style="mso-special-character: line-break; page-break-before: always;" />
</span>
<br />
<div style="margin: 0px;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">26</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">In the set up below, a magnesium electrode and a zinc
electrode are inserted into a lemon.</span></div>
<div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">The bulb did <b style="mso-bidi-font-weight: normal;">not</b>
light up.</span></div>
<span style="margin: 0px;"></span><br />
<div style="line-height: 115%; margin: 0px;">
</div>
<span style="margin: 0px;">
<table align="left" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="10" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="137"></td>
</tr>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><img height="185" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image060.gif" v:shapes="il_fi _x0031_128 _x0031_129 _x0031_126 _x0031_125 _x0031_131 _x0031_133 _x0031_132 _x0031_134 _x0031_124 _x0031_127" width="395" /></td>
</tr>
</tbody></table>
<div style="line-height: 115%; margin: 0px;">
</div>
</span><br />
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<br clear="ALL" style="mso-ignore: vglayout;" />
<div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">What change could result in the bulb lighting up?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Insert the copper wires into the lemon without the
electrodes.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Exchange the positions of the electrodes.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Replace the zinc electrode with silver.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Use graphite electrodes instead of magnesium and zinc.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">27</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">The diagram below shows an alternative form of the Periodic
Table.</span></div>
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
<span style="height: 77px; left: 0px; margin: 229px 0px 0px 269px; position: absolute; width: 92px; z-index: 86;"><img height="77" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image061.gif" v:shapes="_x0031_135" width="92" /></span></div>
<span style="height: 30px; left: 0px; margin: 296px 0px 0px 247px; position: absolute; width: 41px; z-index: 88;"></span><br />
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
<span style="height: 30px; left: 0px; margin: 296px 0px 0px 247px; position: absolute; width: 41px; z-index: 88;">
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="30" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="41"><span style="left: 0pt; margin: 0px; position: absolute; z-index: 88;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_136">
<div style="margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><i style="mso-bidi-font-style: normal;"><span style="font-family: "arial" , "sans-serif"; font-size: 10pt; margin: 0px;">Y</span></i></b></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
</span><span style="height: 29px; left: 0px; margin: 217px 0px 0px 353px; position: absolute; width: 40px; z-index: 87;"><div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="29" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="40"><span style="left: 0pt; margin: 0px; position: absolute; z-index: 87;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_137">
<div style="margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><i style="mso-bidi-font-style: normal;"><span style="font-family: "arial" , "sans-serif"; font-size: 10pt; margin: 0px;">X</span></i></b></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
</div>
</span><br />
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;"><img height="341" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image063.jpg" v:shapes="il_fi" width="383" /></span></div>
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Which trend best describes how the elements change along
the dotted line <b style="mso-bidi-font-weight: normal;"><i style="mso-bidi-font-style: normal;">X</i></b> – <b style="mso-bidi-font-weight: normal;"><i style="mso-bidi-font-style: normal;">Y</i></b>?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">The number of valence electrons increase from <b style="mso-bidi-font-weight: normal;"><i style="mso-bidi-font-style: normal;">X</i></b>
to <b style="mso-bidi-font-weight: normal;"><i style="mso-bidi-font-style: normal;">Y</i></b>.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">The number of electron shells decrease from <b style="mso-bidi-font-weight: normal;"><i style="mso-bidi-font-style: normal;">X</i></b>
to <b style="mso-bidi-font-weight: normal;"><i style="mso-bidi-font-style: normal;">Y</i></b>.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">The metallic character decreases from <b style="mso-bidi-font-weight: normal;"><i style="mso-bidi-font-style: normal;">X</i></b> to <b style="mso-bidi-font-weight: normal;"><i style="mso-bidi-font-style: normal;">Y</i></b>.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">The proton number increases from <b style="mso-bidi-font-weight: normal;"><i style="mso-bidi-font-style: normal;">X</i></b> to <b style="mso-bidi-font-weight: normal;"><i style="mso-bidi-font-style: normal;">Y</i></b>.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div style="line-height: 150%; margin: 0px;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">28</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Which of the following statements
best describes the change in properties across a period in the Periodic
Table?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">The number of neutrons in the nucleus increases.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">The charge of the ions formed increases in magnitude.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">The elements become less metallic in nature.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">The atomic radius of the elements increases.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">29</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">Which graph below shows how temperature changes in an
exothermic reaction?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 205.55pt;" valign="top" width="274"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 212.6pt;" valign="top" width="283"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 205.55pt;" width="274"><span style="margin: 0px;"></span><br />
<div style="line-height: 115%; margin: 0px;">
</div>
<span style="margin: 0px;">
<table align="left" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="8" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="34"></td>
</tr>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><img height="172" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image064.gif" v:shapes="_x0031_140 _x0031_141 _x0031_143 _x0031_142" width="235" /></td>
</tr>
</tbody></table>
<div style="line-height: 115%; margin: 0px;">
</div>
</span><span style="height: 32px; margin: 1px 0px 0px -5px; position: absolute; width: 129px; z-index: 89;"><div style="line-height: 115%; margin: 0px;">
</div>
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="32" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="129"><span style="margin: 0px; position: absolute; z-index: 89;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_139">
<div style="margin: 0px;">
<span style="font-family: "calibri" , "sans-serif"; font-size: 11pt; margin: 0px;">temperature</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div style="line-height: 115%; margin: 0px;">
</div>
</span>
<br />
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 212.6pt;" valign="top" width="283"><br clear="ALL" style="mso-ignore: vglayout;" />
<span style="height: 32px; margin: 7px 0px 0px -4px; position: absolute; width: 111px; z-index: 97;"></span><br />
<div style="line-height: 115%; margin: 0px;">
</div>
<span style="height: 32px; margin: 7px 0px 0px -4px; position: absolute; width: 111px; z-index: 97;">
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="32" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="111"><span style="margin: 0px; position: absolute; z-index: 97;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_144">
<div style="margin: 0px;">
<span style="font-family: "calibri" , "sans-serif"; font-size: 11pt; margin: 0px;">temperature</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div style="line-height: 115%; margin: 0px;">
</div>
</span><br />
<div style="line-height: 115%; margin: 0px;">
<span style="height: 172px; margin: 31px 0px 0px 37px; position: absolute; width: 12px; z-index: 94;"><img height="172" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image065.gif" v:shapes="_x0031_145" width="12" /></span></div>
<span style="height: 32px; left: 0px; margin: 104px 0px 0px 120px; position: absolute; width: 158px; z-index: 96;"></span><br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
</div>
<span style="height: 32px; left: 0px; margin: 104px 0px 0px 120px; position: absolute; width: 158px; z-index: 96;">
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="32" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="158"><span style="left: 0pt; margin: 0px; position: absolute; z-index: 96;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_146">
<div align="right" style="margin: 0px; text-align: right;">
<span style="font-family: "calibri" , "sans-serif"; font-size: 11pt; margin: 0px;">time</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
</div>
</span><br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="height: 129px; left: 0px; margin: 37px 0px 0px 42px; position: absolute; width: 198px; z-index: 98;"><img height="129" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image066.gif" v:shapes="_x0031_147" width="198" /></span><span style="height: 12px; left: 0px; margin: 92px 0px 0px 42px; position: absolute; width: 212px; z-index: 95;"><img height="12" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image067.gif" v:shapes="_x0031_148" width="212" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 205.55pt;" valign="top" width="274"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 212.6pt;" valign="top" width="283"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="height: 167.45pt; mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); height: 167.45pt; margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); height: 167.45pt; margin: 0px; padding: 0in 5.4pt; width: 205.55pt;" width="274"><span style="margin: 0px;"></span><br />
<div style="line-height: 115%; margin: 0px;">
</div>
<span style="margin: 0px;">
<table align="left" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="3" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="40"></td>
</tr>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><img height="92" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image068.gif" v:shapes="_x0031_153 _x0031_152 _x0031_151" width="231" /></td>
</tr>
</tbody></table>
<div style="line-height: 115%; margin: 0px;">
</div>
</span><br />
<div style="line-height: 115%; margin: 0px;">
<span style="height: 171px; margin: 31px 0px 0px 34px; position: absolute; width: 12px; z-index: 104;"><img height="171" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image069.gif" v:shapes="_x0031_149" width="12" /></span></div>
<span style="height: 31px; margin: 5px 0px 0px -5px; position: absolute; width: 130px; z-index: 107;"></span><br />
<div style="line-height: 115%; margin: 0px;">
</div>
<span style="height: 31px; margin: 5px 0px 0px -5px; position: absolute; width: 130px; z-index: 107;">
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="31" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="130"><span style="margin: 0px; position: absolute; z-index: 107;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_150">
<div style="margin: 0px;">
<span style="font-family: "calibri" , "sans-serif"; font-size: 11pt; margin: 0px;">temperature</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div style="line-height: 115%; margin: 0px;">
</div>
</span>
<br />
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); height: 167.45pt; margin: 0px; padding: 0in 5.4pt; width: 212.6pt;" valign="top" width="283"><br clear="ALL" style="mso-ignore: vglayout;" />
<span style="height: 32px; left: 0px; margin: 118px 0px 0px 212px; position: absolute; width: 70px; z-index: 99;"></span><br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
</div>
<span style="height: 32px; left: 0px; margin: 118px 0px 0px 212px; position: absolute; width: 70px; z-index: 99;">
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="32" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="70"><span style="left: 0pt; margin: 0px; position: absolute; z-index: 99;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_154">
<div align="center" style="margin: 0px; text-align: center;">
<span style="font-family: "calibri" , "sans-serif"; font-size: 11pt; margin: 0px;">time</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
</div>
</span><br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="height: 12px; left: 0px; margin: 112px 0px 0px 41px; position: absolute; width: 212px; z-index: 100;"><img height="12" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image070.gif" v:shapes="_x0031_155" width="212" /></span><span style="height: 63px; left: 0px; margin: 56px 0px 0px 42px; position: absolute; width: 188px; z-index: 101;"><img height="63" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image071.gif" v:shapes="_x0031_156" width="188" /></span><span style="height: 172px; left: 0px; margin: 31px 0px 0px 36px; position: absolute; width: 12px; z-index: 102;"><img height="172" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image072.gif" v:shapes="_x0031_157" width="12" /></span></div>
<span style="height: 32px; left: 0px; margin: 5px 0px 0px -4px; position: absolute; width: 130px; z-index: 103;"></span><br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
</div>
<span style="height: 32px; left: 0px; margin: 5px 0px 0px -4px; position: absolute; width: 130px; z-index: 103;">
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="32" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="130"><span style="left: 0pt; margin: 0px; position: absolute; z-index: 103;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_158">
<div style="margin: 0px;">
<span style="font-family: "calibri" , "sans-serif"; font-size: 11pt; margin: 0px;">temperature</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
</div>
</span>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); height: 167.45pt; margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); height: 167.45pt; margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<span style="font-family: "times new roman" , "serif"; font-size: 12pt; margin: 0px;"><br clear="all" style="mso-special-character: line-break; page-break-before: always;" />
</span>
<br />
<div style="margin: 0px;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">30</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">A solution of hydrogen peroxide releases oxygen slowly at
room temperature.</span></div>
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">hydrogen peroxide </span><span style="font-family: "wingdings"; font-size: 11pt; line-height: 150%; margin: 0px;"><span style="margin: 0px;">à</span></span><span style="font-size: 11pt; line-height: 150%; margin: 0px;"> water + oxygen</span></div>
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">The diagram shows the effect of adding blood to hydrogen
peroxide.</span></div>
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;"><img height="217" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image074.jpg" v:shapes="_x0000_i1042" width="432" /></span></div>
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">What could be the reason for this
change?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Blood contains water which increases the concentration of
water.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Blood contains an enzyme which catalyses the reaction.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Blood pressure is higher than atmospheric pressure.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">The concentration of hydrogen peroxide increases when blood
is added.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div style="line-height: 150%; margin: 0px;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">31</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 115%; margin: 0px 0px 0px -1px; text-align: justify; text-indent: 0.9pt;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">In an
experiment, 0.325 g of zinc reacts with an excess of hydrochloric acid. The
graph shows how the volume of hydrogen produced varies with time.</span></div>
<span style="margin: 0px;"></span><br />
<div style="line-height: 115%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
</div>
<span style="margin: 0px;">
<table align="left" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td height="3" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;" width="53"></td>
</tr>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"></td>
<td bgcolor="white" height="316" style="background: rgb(255, 255, 255); border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="448"><span style="left: 0pt; margin: 0px; position: absolute; z-index: 109;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_160">
<div style="margin: 0px;">
<span style="margin: 0px;"><img height="303" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image076.jpg" v:shapes="Picture_x0020_50" width="424" /></span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div style="line-height: 115%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
</div>
</span><br />
<div style="line-height: 115%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<br /></div>
<div style="line-height: 115%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<br /></div>
<div style="line-height: 115%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<br /></div>
<div style="line-height: 115%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<br /></div>
<div style="line-height: 115%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<br /></div>
<div style="line-height: 115%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<br /></div>
<div style="line-height: 115%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<br /></div>
<div style="line-height: 115%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<br /></div>
<div style="line-height: 115%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<br /></div>
<div style="line-height: 115%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<br /></div>
<div style="line-height: 115%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<br /></div>
<div style="line-height: 115%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<br /></div>
<div style="line-height: 115%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<br /></div>
<div style="line-height: 115%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<br /></div>
<div style="line-height: 115%; margin: 0px 0px 0px 48px; text-align: justify; text-indent: -0.5in;">
<br /></div>
<div style="line-height: 115%; margin: 0px; text-align: justify;">
<br /></div>
<br clear="ALL" style="mso-ignore: vglayout;" />
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">In a second experiment, 0.650 g of
zinc reacts with an excess of hydrochloric acid.<br />
For the second experiment, at which point will the graph become horizontal?</span></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">32</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin-bottom: .0001pt; margin: 0in;">
<span lang="EN-SG" style="font-size: 11pt; line-height: 150%; margin: 0px;">Ammonia is manufactured
on a large scale by a reversible reaction in the Haber process.</span></div>
<div style="line-height: 150%; margin-bottom: .0001pt; margin: 0in;">
<span lang="EN-SG" style="font-size: 11pt; line-height: 150%; margin: 0px;">Which of the following
is true about a reversible reaction?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">A high temperature is needed for the reaction to occur.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">A catalyst is needed for a reversible reaction.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">The reaction has low activation energy.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">The yield of the products will be less than 100 %.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">33</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Which of the following methods
would <b style="mso-bidi-font-weight: normal;">not</b> produce ammonia?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">heating zinc nitrate with sodium hydroxide after adding a
piece of aluminium </span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">heating ammonium chloride with calcium hydroxide</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">heating ammonium sulfate with dilute hydrochloric acid</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">heating ammonium sulfate with sodium hydroxide</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">34</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Which of the following is <b style="mso-bidi-font-weight: normal;">not</b> responsible for the formation of
photochemical smog?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">ethene</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">oxides of nitrogen</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">ozone</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">sulfur dioxide</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">35</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">The diagram shows ethanol burning inside a sealed jar.</span></div>
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;"><img height="125" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image078.jpg" v:shapes="_x0000_i1041" width="225" /></span></div>
<div style="line-height: 115%; margin: 0px;">
<br /></div>
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">The mass of one gas in the jar does <b style="mso-bidi-font-weight: normal;">not</b> change. Which gas is this?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">carbon dioxide</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">nitrogen</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">oxygen</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">water vapour</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<span style="font-family: "times new roman" , "serif"; font-size: 12pt; margin: 0px;"><br clear="all" style="mso-special-character: line-break; page-break-before: always;" />
</span>
<br />
<div style="margin: 0px;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">36</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">The diagram shows the manufacture of an important organic
chemical X.</span></div>
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;"><img height="233" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image080.jpg" v:shapes="Picture_x0020_1" width="344" /></span></div>
<div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">What is the structural formula of <b style="mso-bidi-font-weight: normal;">X</b>?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="86" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image082.gif" v:shapes="_x0000_i1039" width="170" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="86" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image084.gif" v:shapes="_x0000_i1038" width="127" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="100" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image086.jpg" v:shapes="_x0000_i1037" width="175" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="90" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image088.jpg" v:shapes="_x0000_i1036" width="121" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">37</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">The molecular formula of oleic acid
is C<sub>18</sub>H<sub>34</sub>O<sub>2</sub>. How many double bonds between
carbon atoms are present in one molecule of oleic acid?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">1</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">2</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">3</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">4</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<span style="font-family: "times new roman" , "serif"; font-size: 12pt; margin: 0px;"><br clear="all" style="mso-special-character: line-break; page-break-before: always;" />
</span>
<br />
<div style="margin: 0px;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">38</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 115%; margin: 0px;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;">When an
alkene reacts with bromine, the product formed is </span></div>
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
<span style="font-size: 11pt; line-height: 115%; margin: 0px;"><img height="97" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image090.gif" v:shapes="_x0000_i1035" width="288" /></span></div>
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">This implies that the original
structure of the alkene is </span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="82" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image092.gif" v:shapes="Picture_x0020_93" width="209" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="103" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image094.gif" v:shapes="Picture_x0020_96" width="149" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="90" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image096.jpg" v:shapes="Picture_x0020_102" width="202" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="87" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image098.gif" v:shapes="Picture_x0020_99" width="138" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">39</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Compound <b style="mso-bidi-font-weight: normal;">Z</b> is
formed by the oxidation of ethanol. Which of the following is <b style="mso-bidi-font-weight: normal;">not</b> a property of <b style="mso-bidi-font-weight: normal;">Z</b>?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">It is sour.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">It is a strong acid.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">It is used to preserve food.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">It produces hydrogen gas with zinc.</span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
<span style="font-family: "times new roman" , "serif"; font-size: 12pt; margin: 0px;"><br clear="all" style="mso-special-character: line-break; page-break-before: always;" />
</span>
<br />
<div style="margin: 0px;">
<br /></div>
<br />
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-image: none; border: medium; margin: 0px 0px 0px -12px;">
<tbody>
<tr style="mso-yfti-firstrow: yes; mso-yfti-irow: 0;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center; text-indent: -5.4pt;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">40</span></b></div>
</td>
<td colspan="4" style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 449.6pt;" valign="top" width="599"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">A condensation polymer is to be made from
the two monomers below:</span></div>
<span style="height: 28px; margin: 19px 0px 0px 221px; position: absolute; width: 76px; z-index: 110;"></span><br />
<div style="line-height: 150%; margin: 0px;">
</div>
<span style="height: 28px; margin: 19px 0px 0px 221px; position: absolute; width: 76px; z-index: 110;">
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td bgcolor="white" height="28" style="background: rgb(255, 255, 255); border: 0px rgb(0, 0, 0); margin: 0px; vertical-align: top;" width="76"><span style="margin: 0px; position: absolute; z-index: 110;">
<table cellpadding="0" cellspacing="0" style="width: 100%px;">
<tbody>
<tr>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px;"><div style="margin: 0px; padding: 3.6pt 7.2pt;" v:shape="_x0031_172">
<div align="center" style="margin: 0px; text-align: center;">
<span style="font-family: "arial" , "sans-serif"; margin: 0px;">and</span></div>
</div>
</td>
</tr>
</tbody></table>
</span> </td>
</tr>
</tbody></table>
<div style="line-height: 150%; margin: 0px;">
</div>
</span><br />
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="53" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image100.jpg" v:shapes="Picture_x0020_109" width="177" /><img height="59" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image102.jpg" v:shapes="Picture_x0020_110" width="193" /></span></div>
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><span style="margin: 0px;"> </span></span></div>
<div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;">Which diagram shows the structure of the
polymer?</span></div>
</td>
</tr>
<tr style="mso-yfti-irow: 1;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">A</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="73" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image104.jpg" v:shapes="_x0000_i1028" width="353" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 2;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">B</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="76" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image106.jpg" v:shapes="_x0000_i1027" width="282" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 3;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">C</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="78" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image108.jpg" v:shapes="_x0000_i1026" width="353" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
<tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes;">
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 21.3pt;" valign="top" width="28"><div align="center" style="line-height: 150%; margin: 0px; text-align: center;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 28.35pt;" valign="top" width="38"><div style="line-height: 150%; margin: 0px;">
<b style="mso-bidi-font-weight: normal;"><span style="font-size: 11pt; line-height: 150%; margin: 0px;">D</span></b></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 389.8pt;" valign="top" width="520"><div style="line-height: 150%; margin: 0px;">
<span style="font-size: 11pt; line-height: 150%; margin: 0px;"><img height="81" src="file:///C:/Users/COLLIN~1/AppData/Local/Temp/msohtmlclip1/01/clip_image110.jpg" v:shapes="_x005f_x0000_t75" width="270" /></span></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 14.2pt;" valign="top" width="19"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
<td style="background-color: transparent; border: 0px rgb(0, 0, 0); margin: 0px; padding: 0in 5.4pt; width: 17.25pt;" valign="top" width="23"><div style="line-height: 150%; margin: 0px;">
<br /></div>
</td>
</tr>
</tbody></table>
<br />
<div style="line-height: 150%; margin: 0px;">
<br /></div>
<br />
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
<br /></div>
<br />
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
<b style="mso-bidi-font-weight: normal;">END OF PAPER 1</b></div>
<br />
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
<br /></div>
<br />
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
<br /></div>
<br />
<div align="center" style="line-height: 115%; margin: 0px; text-align: center;">
<br /></div>
<b></b><i></i><u></u><sub></sub><sup></sup><strike></strike>Collin Wonghttp://www.blogger.com/profile/16361719825418477584noreply@blogger.com0tag:blogger.com,1999:blog-3377613247347229334.post-71148170629492073172017-10-02T11:21:00.003-07:002017-10-27T19:38:11.371-07:00Covalent Ionic Bonding Katong Convent 2014 Sec 3 Sci Chem Chinese and English<div data-block="true" data-editor="a5eil" data-offset-key="38j4h-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="38j4h-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="38j4h-0-0" style="font-family: inherit;">The table shows some properties of four substances L, M, N and O.</span></div>
</div>
<div data-block="true" data-editor="a5eil" data-offset-key="l4sv-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="l4sv-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="l4sv-0-0" style="font-family: inherit;">以下图表显示4种不明物质L,M,N,O的特征</span></div>
</div>
<div data-block="true" data-editor="a5eil" data-offset-key="4gldj-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="4gldj-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="4gldj-0-0" style="font-family: inherit;">substance property</span></div>
</div>
<div data-block="true" data-editor="a5eil" data-offset-key="4pmci-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="4pmci-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="4pmci-0-0" style="font-family: inherit;"><br data-text="true" /></span></div>
</div>
<div data-block="true" data-editor="a5eil" data-offset-key="9qstn-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="9qstn-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="9qstn-0-0" style="font-family: inherit;">L does not conduct electricity under any conditions</span></div>
</div>
<div data-block="true" data-editor="a5eil" data-offset-key="amiug-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="amiug-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="amiug-0-0" style="font-family: inherit;">L在任何条件下不能导电</span></div>
</div>
<div data-block="true" data-editor="a5eil" data-offset-key="7915s-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="7915s-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="7915s-0-0" style="font-family: inherit;">M conducts electricity only in aqueous solution</span></div>
</div>
<div data-block="true" data-editor="a5eil" data-offset-key="48nf1-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="48nf1-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="48nf1-0-0" style="font-family: inherit;">M 只能在水溶信导电</span></div>
</div>
<div data-block="true" data-editor="a5eil" data-offset-key="fj9sm-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="fj9sm-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="fj9sm-0-0" style="font-family: inherit;">N conducts electricity in both the molten and solid states</span></div>
</div>
<div data-block="true" data-editor="a5eil" data-offset-key="4jbl0-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="4jbl0-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="4jbl0-0-0" style="font-family: inherit;">N能在熔浆与固体导电</span></div>
</div>
<div data-block="true" data-editor="a5eil" data-offset-key="10n3n-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="10n3n-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="10n3n-0-0" style="font-family: inherit;">O conducts electricity in both the molten and aqueous states</span></div>
</div>
<div data-block="true" data-editor="a5eil" data-offset-key="8ur48-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="8ur48-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="8ur48-0-0" style="font-family: inherit;">O能在熔浆与水溶导电</span></div>
</div>
<div data-block="true" data-editor="a5eil" data-offset-key="1qgfe-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="1qgfe-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="1qgfe-0-0" style="font-family: inherit;">What could these four substances be?</span></div>
</div>
<div data-block="true" data-editor="a5eil" data-offset-key="bqg41-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="bqg41-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="bqg41-0-0" style="font-family: inherit;">请问这四种不明物质是什么?</span></div>
</div>
<div data-block="true" data-editor="a5eil" data-offset-key="ck0ou-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="ck0ou-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="ck0ou-0-0" style="font-family: inherit;"><br data-text="true" /></span></div>
</div>
<div data-block="true" data-editor="a5eil" data-offset-key="efpjm-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="efpjm-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="efpjm-0-0" style="font-family: inherit;"> L M N O </span></div>
</div>
<div data-block="true" data-editor="a5eil" data-offset-key="eotg0-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="eotg0-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="eotg0-0-0" style="font-family: inherit;">A Ag 金 HCl 氯化氢 NaCl 氯化钠 Ne氖 </span></div>
</div>
<div data-block="true" data-editor="a5eil" data-offset-key="a0p57-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="a0p57-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="a0p57-0-0" style="font-family: inherit;">B HCl 氯化氢 Ne 氖 NaCl 氯化钠 Ag 金</span></div>
</div>
<div data-block="true" data-editor="a5eil" data-offset-key="di0of-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="di0of-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="di0of-0-0" style="font-family: inherit;">C Ne 氖 NaCl 氯化钠 Ag金 HCl 氯化氢</span></div>
</div>
<div data-block="true" data-editor="a5eil" data-offset-key="e4e6r-0-0" style="background-color: white; color: #1d2129; font-family: Helvetica, Arial, sans-serif; font-size: 14px; white-space: pre-wrap;">
<div class="_1mf _1mj" data-offset-key="e4e6r-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="e4e6r-0-0" style="font-family: inherit;">D Ne氖 HCl 氯化氢 Ag金 NaCl 氯化钠 </span></div>
<div class="_1mf _1mj" data-offset-key="e4e6r-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="e4e6r-0-0" style="font-family: inherit;"><br /></span></div>
<div class="_1mf _1mj" data-offset-key="e4e6r-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="e4e6r-0-0" style="font-family: inherit;">hp 9 8 7 6 757 0 Collin </span></div>
<div class="_1mf _1mj" data-offset-key="e4e6r-0-0" style="direction: ltr; font-family: inherit; position: relative;">
<span data-offset-key="e4e6r-0-0" style="font-family: inherit;"><br /></span></div>
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Collin Wonghttp://www.blogger.com/profile/16361719825418477584noreply@blogger.com0tag:blogger.com,1999:blog-3377613247347229334.post-67044162220272779772017-09-12T11:31:00.001-07:002017-10-27T19:45:36.966-07:00Primary 6 Singapore Chinese Girl Science 2016<div class="separator" style="clear: both; text-align: center;">
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<br />Collin Wonghttp://www.blogger.com/profile/16361719825418477584noreply@blogger.com0tag:blogger.com,1999:blog-3377613247347229334.post-54981502082989004872017-09-07T19:13:00.001-07:002017-10-27T19:46:24.026-07:00P6 Science 2006 Taonan Archilles Attack !Effects of Oil on Plants <br />
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<span style="font-size: large;"><strong>Answer :B and D only as you can see Drastic Reduction on Amount of Leaves</strong></span><br />
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