Chemistry 12 Examination Booklet 2008/09 Released Exam June 2009 Form A DO NOT OPEN ANY EXAMINATION MATERIALS UNTIL INSTRUCTED TO DO SO. FOR FURTHER INSTRUCTIONS REFER TO THE RESPONSE BOOKLET. Contents: 18 pages 50 multiple-choice questions Examination: 2 hours Additional Time Permitted: 60 minutes © Province of British Columbia PART A: MULTIPLE CHOICE Value: 62.5% of the examination Suggested Time: 80 minutes INSTRUCTIONS: For each question, select the best answer and record your choice on the Answer Sheet provided. Using an HB pencil, completely fill in the bubble that has the letter corresponding to your answer. You have Examination Booklet Form A. In the box above #1 on your Answer Sheet, fill in the bubble as follows. Exam Booklet Form/ Cahier d’examen A B C D E F G H 1. Which of the following would have the highest reaction rate at room temperature? A. H2 (g) + I2 (g) 2HI(g) B. H2 S(g) + Cl 2 (aq) 2HCl(aq ) + S(s) C. 2 Ca 2 + (aq) + C2 O4 (aq) CaC 2 O4 (s) D. Mg(s) + 2H2O( ) Mg(OH )2 (aq) + H2 (g) 2. Consider the following experimental results: Reactants Temperature Concentration of acid Rate Experiment 1 Experiment 2 powdered Cu and HCl chunk of Cu and HNO3 20º C 10º C 0.6 M HCl 0.4 M HNO3 low high Which of the following factors would account for the lower rate in Experiment 1? A. B. C. D. temperature nature of reactants surface area of Cu concentration of acid Chemistry 12 – 0906 Form A Page 1 3 Which of the following describes “activation energy”? A. B. C. D. the amount of energy that product molecules possess the difference between the products PE and the reactants PE the amount of energy released when reactant molecules collide the minimum amount of energy required to start a chemical reaction 4. Consider the following PE diagram: 200 PE (kJ) 150 100 50 Progress of reaction Which of the following is correct for the reverse reaction? Page 2 PE (activated complex) (kJ) H (kJ) A. 50 100 B. 50 +100 C. 200 100 D. 200 +100 Chemistry 12 – 0906 Form A 5. Consider the following reaction mechanism: Step 1: ClO + H 2 O HClO + OH Step 2: I + HClO HIO + Cl Step 3: HIO + OH IO + H 2 O Which of the following is correct? Reactant for the Overall Reaction Reaction Intermediate A. I OH B. ClO H 2O C. H 2O HClO D. HClO HIO 6. Which of the following is correct for all systems at equilibrium? A. B. C. D. I The temperature is constant. II [Reactants] = [Products] III Forward and reverse reactions are occurring. IV The forward and reverse reaction rates are equal. I and II only I, III and IV only II, III and IV only III and IV only Chemistry 12 – 0906 Form A Page 3 7. In which of the following does entropy increase? A. the electrolysis of Na 2SO 4 ( aq ) B. the reaction of NaCl ( aq ) with AgNO3 ( aq ) C. the redox reaction of an Fe nail in CuCl 2 ( aq ) D. the neutralization of Sr ( OH )2 ( aq ) by H 2SO 4 ( aq ) 8. Considering enthalpy and entropy factors, in which of the following will equilibrium be established? A. B. C. D. Page 4 I ? Cl 2 (g) Cl2 (aq) H = 25 kJ II ? CO(g) + 2H2 (g) CH3OH (g) H = 91kJ III ? Mg(s) + 2HCl(aq) MgCl2 (aq) + H2 (g) H = 425 kJ IV ? 3CO2 (g) + 4H2 O(g) C 3H8 (g) + 5 O2 (g) H = + 2200 kJ I and II only II and IV only III and IV only I, II and III only Chemistry 12 – 0906 Form A Use the following equilibrium to answer questions 9 and 10. 2NO ( g ) N 2 ( g ) + O2 ( g ) H = +181kJ 9. Which of the following pairs of stresses cause the same shift to the above equilibrium? A. adding a catalyst and decreasing volume B. increasing pressure and increasing [ NO ] C. decreasing [ N 2 ] and decreasing temperature D. decreasing temperature and increasing volume 10. If some O 2 is injected into the above equilibrium system, which of the following is correct? Equilibrium Shift Net Change [ O 2 ] A. left increase B. left decrease C. right increase D. right decrease 11. Consider the following: SO3 ( g ) + 6HF ( g ) SF6 ( g ) + 3H 2O ( g ) K eq = 6.3 10 3 Which of the following is the value of K eq for: 2SF6 ( g ) + 6H 2O ( g ) 12HF ( g ) + 2SO3 ( g ) A. 1.3 10 1 B. 1.6 10 2 C. 3.2 10 2 D. 2.5 10 4 Chemistry 12 – 0906 Form A Page 5 12. Consider the following: I II III C 2H 4 ( g ) + H 2 ( g ) C 2H 6 ( g ) 2HBr ( g ) H 2 ( g ) + Br2 ( g ) Si ( s ) + O 2 ( g ) SiO 2 ( s ) K eq = 1.2 10 19 K eq = 7.0 10 20 K eq = 2.0 10 142 Which of the following lists these equilibria from the one that most favours products to the one that least favours products? A. B. C. D. I, II, III I, III, II II, III, I III, I, II 13. Consider the following equilibrium system: Ni ( s ) + 4CO ( g ) Ni ( CO )4 ( g ) H = 603 kJ Which of the following statements is correct? A. Increasing [ CO ] will increase K eq . B. Increasing temperature will increase K eq . C. Increasing temperature will decrease K eq . D. Decreasing [ Ni ( CO )4 ] will decrease K eq . Page 6 Chemistry 12 – 0906 Form A 14. Consider the equilibrium: N 2 ( g ) + 3H 2 ( g ) 2NH 3 ( g ) K eq = 64 A 1.0 L container is filled with 0.28 mol N 2 , 0.16 mol H 2 and 0.54 mol NH 3 . In which direction will the reaction proceed and what will happen to the pressure of the system? Direction Pressure A. left decreases B. left increases C. right decreases D. right increases 15. Which of the following will form a saturated solution? A. 0.10 mol CaSO 4 added to 1.0 L of water B. 0.10 mol Cs 2SO 4 added to 1.0 L of water C. 0.20 mol MgSO 4 added to 2.0 L of water D. 0.50 mol Pb ( NO3 )2 added to 2.0 L of water 16. Which of the following would be an appropriate measure of solubility? A. B. C. D. moles of solute per volume of solute mass of solute per volume of solution volume of solvent per mass of solvent moles of solute at a specific temperature 17. What is the complete ionic equation for the precipitation reaction between MgS ( aq ) and Sr ( OH )2 ( aq ) ? A. Mg 2 + ( aq ) + 2OH ( aq ) Mg ( OH )2 ( s ) B. MgS ( aq ) + Sr ( OH ) 2 ( aq ) SrS ( aq ) + Mg ( OH ) 2 ( s ) C. Mg2 + ( aq ) + S2 ( aq ) + Sr 2 + ( aq ) + 2OH ( aq ) Mg2 + ( aq ) + 2OH ( aq ) + Sr S ( s ) D. Mg2 + ( aq ) + S2 ( aq ) + Sr 2 + ( aq ) + 2OH ( aq ) Sr 2 + ( aq ) + S2 ( aq ) + Mg ( OH )2 ( s ) Chemistry 12 – 0906 Form A Page 7 18. What is the K sp expression for the low solubility salt formed when K 2SO3 ( aq ) and AlCl 3 ( aq ) are mixed? A. K sp = [ SO32 ] B. K sp = [ K + ] [ Cl ] C. K sp = [ Al 3+ ] [ SO32 ] 2 3 D. K sp = [ Al 3+ ] [ SO32 ] 3 2 19. Which compound has the lowest solubility? A. ZnS B. CuS C. AgCl D. SrSO 4 20. What is the solubility of the salt PbCl 2 ? A. 1.4 10 2 M B. 2.4 10 3 M C. 3.5 10 3 M D. 1.2 10 5 M [ 21. A solution is found to contain a [Pb2 + ] of 0.10M . What is the maximum SO 4 2 ] that can exist in this solution before a precipitate forms? A. B. C. D. Page 8 [SO [SO [SO [SO 2 4 2 4 2 4 2 4 ] = 1.8 10 ] = 1.8 10 ] = 1.8 10 ] = 1.3 10 9 8 7 4 M M M M Chemistry 12 – 0906 Form A 22. Which of the following represents the results of tests using an acidic solution? Reaction with Mg(s) Colour in Phenol Red A. yes yellow B. yes red C. no yellow D. no red 23. Identify the reactant acid and its conjugate base in the equilibrium below. Al ( H 2 O )63+ + HS 2+ H 2S + Al ( H 2 O )5 ( OH ) Reactant Acid Conjugate Base A. HS H 2S B. H 2S Al ( H 2O )6 3+ C. Al ( H 2O )6 D. Al ( H 2 O )6 3+ 3+ HS Al ( H 2 O )5 ( OH ) 2+ 24. Which of the following is the weakest acid? A. 0.10 M CH 3COOH B. 0.50 M HClO 4 C. 1.0 M HIO3 D. 1.5 M HCN Chemistry 12 – 0906 Form A Page 9 25. Which of the following is the correct sequence of relative acid strengths? A. HO 2 > HCO3 > H 2O 2 > H 2CO3 B. H 2CO3 > HCO3 > H 2O 2 > HO 2 C. H 2CO3 > H 2O 2 > HCO3 > HO 2 D. HCO3 > H 2O 2 > H 2CO3 > HO 2 26. Water reacts most completely as an acid with which of the following? A. HO 2 B. CO32 C. C2O 42 D. HPO 42 27. Which of the following equations represents the ionization of water? A. H 2O ( ) H 2 ( aq ) + 1 2 O 2 ( aq ) B. + 2 2H 2O ( ) H 3O ( aq ) + O ( aq ) C. + H 2O ( ) + H 2O ( ) H ( aq ) + OH ( aq ) + D. H 2O ( ) + H 2O ( ) H 3O ( aq ) + OH ( aq ) 28. The ionization of water is endothermic. Which of the following is a suitable value of K w if the temperature of water is lower than 25º C ? A. 6.8 10 15 B. 2.0 10 14 C. 1.0 10 14 D. 1.6 10 13 Page 10 Chemistry 12 – 0906 Form A 29. What is the pOH of 0.30 M HI ? A. 3.3 10 14 B. 0.52 C. 0.52 D. 13.48 30. What is the equilibrium constant expression for the predominant equilibrium in HCO3 ( aq ) ? A. H CO OH 2 3 HCO3 B. H 3O + CO32 HCO3 C. HCO3 ( aq ) + H 2 O ( ) H 2 CO3 ( aq ) + OH ( aq ) 2 + D. HCO3 ( aq ) + H 2 O ( ) H 3O ( aq ) + CO3 ( aq ) 31. Which of the following 0.10 M solutions would have the lowest pH? A. HF B. NH 3 C. HNO3 D. H 2 CO3 Chemistry 12 – 0906 Form A Page 11 32. Which of the following describes the predominant hydrolysis reaction that occurs in Na 2 HPO 4 ( aq ) ? A. B. 2 + Na 2 HPO 4 ( aq ) 2Na ( aq ) + HPO 4 ( aq ) 2 PO 3 ( aq ) + H O ( ) HPO ( aq ) + OH ( aq ) 4 2 4 3 + HPO 42 ( aq ) + H 2 O ( ) H 3O ( aq ) + PO 4 ( aq ) D. HPO 42 ( aq ) + H 2 O ( ) H 2 PO 4 ( aq ) + OH ( aq ) C. 33. Which of the following represents a basic salt solution? A. NaI(aq) B. C. NH 4 Cl(aq) Na 2CO 3 (aq) D. NaHSO 4 (aq) 34. The term “equivalence point” typically applies to A. B. C. D. Page 12 buffer solutions. titration reactions. saturated solutions. chemical indicators. Chemistry 12 – 0906 Form A 35. A solution is tested with two indicators and the following results are obtained: Indicator Colour chlorophenol red red phenolphthalein colourless What is the approximate pH of the solution? A. 4.0 B. 6.0 C. 7.0 D. 10.0 36. What is the net ionic equation for the reaction of hydrochloric acid with NaOH ( aq ) ? A. H + ( aq ) + OH ( aq ) H 2 O ( ) B. HCl ( aq ) + NaOH ( aq ) NaCl ( aq ) + H 2 O ( ) C. HCl ( aq ) + NaOH ( aq ) + H 2 O ( ) NaCl ( aq ) + H 3O + ( aq ) + OH ( aq ) D. H + ( aq ) + Cl ( aq ) + Na + ( aq ) + OH ( aq ) Na + ( aq ) + Cl ( aq ) + H 2 O ( ) 37. Consider the following buffer equilibrium system: + HCN ( aq ) + H 2O ( ) H 3O ( aq ) + CN ( aq ) What is the net result of adding a small amount of KOH ? A. The pH increases slightly. B. The pH decreases slightly. C. The [ HCN ] increases slightly. D. The [ CN ] decreases slightly. Chemistry 12 – 0906 Form A Page 13 38. An oxide of which of the following elements will form a basic solution? A. B. C. D. P N K C 39. A reducing agent in a chemical reaction can best be described as a substance that A. B. C. D. loses electrons and has a decrease in oxidation number. gains electrons and has a decrease in oxidation number. loses electrons and has an increase in oxidation number. gains electrons and has an increase in oxidation number. 40. What happens to the oxidation number of O as MgO 2 undergoes a reaction in which H 2 O 2 is formed? A. B. C. D. It decreases by 1. It increases by 1. It increases by 2. It does not change. 41. Consider the following redox equation: K 2 Cr2 O 7 + 7H 2SO 4 + 6KBr 3Br2 + 4K 2SO 4 + Cr2 ( SO 4 )3 + 7H 2 O Which chemical species is oxidized? A. Br in KBr B. S in H 2SO 4 C. H in H 2SO 4 D. Cr in K 2 Cr2 O 7 Page 14 Chemistry 12 – 0906 Form A 42. Consider the following spontaneous redox reactions: X + Y X + Y Y + Z Y + Z Which of the following describes the relative strengths of the reducing agents? A. X > Y > Z B. Z > Y > X C. X > Y > Z D. Z > Y > X 43. The following half-reaction can be balanced in acidic solution: N 2O5 NH 4+ Which of the following appear in the balanced equation? A. 13e B. 14e C. 16e D. 18e 44. Consider the following redox reaction: 2MnO 4 + 16H + + 10 I 2Mn 2 + + 8H 2 O + 5 I 2 A 10.0 mL sample of an iodide solution is titrated with 15.7 mL of acidified 0.0106 M MnO 4 . What is the [ I ] of the sample? A. 3.33 10 3 M B. 1.66 10 2 M C. 3.24 10 2 M D. 8.32 10 2 M Chemistry 12 – 0906 Form A Page 15 45. Consider the following diagram of a standard electrochemical cell: e– Object 1 e– Cu(s) Zn(s) 1.0 M Zn(NO3) 2 1.0 M Cu(NO3) 2 Which of the following is correct? Object 1 Zn ( s ) A. light bulb cathode B. light bulb anode C. power supply cathode D. power supply anode Page 16 Chemistry 12 – 0906 Form A Use the following diagram to answer questions 46, 47 and 48. Volts H2(g) Porous Barrier Pt (inert) 1.0 M HCl Ag 1.0 M AgNO3 46. What is the overall cell reaction? A. Ag+ + H + H 2 + Ag B. 2Ag + 2H + 2Ag+ + H 2 C. 2Ag+ + H 2 2H + + 2Ag D. Ag+ + H 2 Ag + 2H + + e 47. Which of the following is correct as the cell operates? Direction of NO3 Migration pH near the Pt Electrode A. towards Pt increases B. towards Pt decreases C. towards Ag increases D. towards Ag decreases 48. Which of the following describes the direction of electron flow and the change in mass of the Ag electrode as the cell operates? Direction of Electron Flow Mass of Ag Electrode A. from Pt to Ag increases B. from Pt to Ag decreases C. from Ag to Pt increases D. from Ag to Pt decreases Chemistry 12 – 0906 Form A Page 17 49. An iron pipeline can be protected from rusting by connecting it to a A. B. C. D. silver electrode buried beside the pipeline. copper electrode buried beside the pipeline. positive terminal of a direct current power supply. negative terminal of a direct current power supply. 50. The electrolysis of molten NaCl is an industrial process. What does the electrolysis produce? A. Na and Cl 2 B. H2 and O2 C. Na + and Cl D. NaOH and Cl 2 You have Examination Booklet Form A. In the box above #1 on your Answer Sheet, ensure you filled in the bubble as follows. Exam Booklet Form/ Cahier d’examen A B C D E F G H This is the end of the multiple-choice section. Answer the remaining questions in the Response Booklet. Page 18 Chemistry 12 – 0906 Form A Chemistry 12 Data Page 39 (226) (223) (227) Actinium Ac Yttrium (261) Rutherfordium Rf 104 72 91.2 Zirconium Values in parentheses are the masses of the most stable or best known isotopes for elements which do not occur naturally. Based on mass of C12 at 12.00. Radium Francium 89 88 138.9 Barium 137.3 Cesium 132.9 Ra Lanthanum 56 Ba 55 Cs 87 Hafnium 178.5 57 La 87.6 Fr Hf 88.9 Strontium 85.5 40 Zr Rubidium Y 38 Sr 37 Rb 47.9 Titanium 45.0 40.1 Scandium Calcium 39.1 22 Ti Potassium 21 4 Sc 20 Ca 24.3 23.0 K Magnesium Sodium 3 19 12 Mg 9.0 6.9 11 Beryllium Lithium Na 4 Be 3 2 Li 1.0 Hydrogen H 1 1 91 Pa Protactinium 231.0 90 Thorium 232.0 140.9 Th Neodymium Praseodymium Cerium 140.1 238.0 Uranium U 92 144.2 60 Nd 59 Pr 58 Ce Bohrium Bh 107 186.2 Rhenium Re 75 (98) Technetium Tc 43 54.9 Manganese Mn 25 28.1 28.1 Silicon Silicon Si Si 14 14 7 (262) Seaborgium Sg 106 183.8 Tungsten W 74 95.9 Molybdenum Mo 42 52.0 Chromium Cr 24 6 (263) (262) Dubnium Db 105 180.9 Tantalum Ta 73 92.9 Niobium Nb 41 50.9 Vanadium V 23 5 9 27 93 (237) Neptunium Np (244) Plutonium Pu 94 150.4 Samarium Promethium (145) Sm 62 (266) Meitnerium Mt 109 192.2 Iridium Ir 77 102.9 Rhodium Rh 45 58.9 Cobalt Co Pm 61 (265) Hassium Hs 108 190.2 Osmium Os 76 101.1 Ruthenium Ru 44 55.8 Iron Fe 26 Atomic Number Symbol Name Atomic Mass 8 (243) Americium Am 95 152.0 Europium Eu 63 195.1 Platinum Pt 78 106.4 Palladium Pd 46 58.7 Nickel Ni 28 10 (247) Curium Cm 96 157.3 Gadolinium Gd 64 197.0 Gold Au 79 107.9 Silver Ag 47 63.5 Copper Cu 29 11 (247) Berkelium Bk 97 158.9 Terbium Tb 65 200.6 Mercury Hg 80 112.4 Cadmium Cd 48 65.4 Zinc Zn 30 12 PERIODIC TABLE OF THE ELEMENTS (251) Californium Cf 98 162.5 Dysprosium Dy 66 204.4 Thallium Tl 81 114.8 Indium In 49 69.7 Gallium Ga 31 27.0 Aluminum Al 13 10.8 Boron B 5 13 (252) Einsteinium Es 99 164.9 Holmium Ho 67 207.2 Lead Pb 82 118.7 Tin Sn 50 72.6 Germanium Ge 32 28.1 Silicon Si 14 12.0 Carbon C 6 14 (257) Fermium Fm 100 167.3 Erbium Er 68 209.0 Bismuth Bi 83 121.8 Antimony Sb 51 74.9 Arsenic As 33 31.0 Phosphorus P 15 14.0 Nitrogen N 7 15 (258) Mendelevium Md 101 168.9 Thulium Tm 69 (209) Polonium Po 84 127.6 Tellurium Te 52 79.0 Selenium Se 34 32.1 Sulphur S 16 16.0 Oxygen O 8 16 (259) Nobelium No 102 173.0 Ytterbium Yb 70 (210) Astatine At 85 126.9 Iodine I 53 79.9 Bromine Br 35 35.5 Chlorine Cl 17 19.0 Fluorine F 9 17 (262) Lawrencium Lr 103 175.0 Lutetium Lu 71 (222) Radon Rn 86 131.3 Xenon Xe 54 83.8 Krypton Kr 36 39.9 Argon Ar 18 20.2 Neon Ne 10 4.0 Helium He 2 18 ATOMIC MASSES OF THE ELEMENTS Based on mass of C12 at 12.00. Values in parentheses are the mass number of the most stable or best known isotopes for elements that do not occur naturally. Element Actinium Aluminum Americium Antimony Argon Arsenic Astatine Barium Berkelium Beryllium Bismuth Boron Bromine Cadmium Calcium Californium Carbon Cerium Cesium Chlorine Chromium Cobalt Copper Curium Dubnium Dysprosium Einsteinium Erbium Europium Fermium Fluorine Francium Gadolinium Gallium Germanium Gold Hafnium Helium Holmium Hydrogen Indium Iodine Iridium Iron Krypton Lanthanum Lawrencium Lead Lithium Lutetium Magnesium Manganese Mendelevium Data Page Symbol Atomic Number Atomic Mass Ac Al Am Sb Ar As At Ba Bk Be Bi B Br Cd Ca Cf C Ce Cs Cl Cr Co Cu Cm Db Dy Es Er Eu Fm F Fr Gd Ga Ge Au Hf He Ho H In I Ir Fe Kr La Lr Pb Li Lu Mg Mn Md 89 13 95 51 18 33 85 56 97 4 83 5 35 48 20 98 6 58 55 17 24 27 29 96 105 66 99 68 63 100 9 87 64 31 32 79 72 2 67 1 49 53 77 26 36 57 103 82 3 71 12 25 101 (227) 27.0 (243) 121.8 39.9 74.9 (210) 137.3 (247) 9.0 209.0 10.8 79.9 112.4 40.1 (251) 12.0 140.1 132.9 35.5 52.0 58.9 63.5 (247) (262) 162.5 (252) 167.3 152.0 (257) 19.0 (223) 157.3 69.7 72.6 197.0 178.5 4.0 164.9 1.0 114.8 126.9 192.2 55.8 83.8 138.9 (262) 207.2 6.9 175.0 24.3 54.9 (258) Element Mercury Molybdenum Neodymium Neon Neptunium Nickel Niobium Nitrogen Nobelium Osmium Oxygen Palladium Phosphorus Platinum Plutonium Polonium Potassium Praseodymium Promethium Protactinium Radium Radon Rhenium Rhodium Rubidium Ruthenium Rutherfordium Samarium Scandium Selenium Silicon Silver Sodium Strontium Sulphur Tantalum Technetium Tellurium Terbium Thallium Thorium Thulium Tin Titanium Tungsten Uranium Vanadium Xenon Ytterbium Yttrium Zinc Zirconium Symbol Atomic Number Atomic Mass Hg Mo Nd Ne Np Ni Nb N No Os O Pd P Pt Pu Po K Pr Pm Pa Ra Rn Re Rh Rb Ru Rf Sm Sc Se Si Ag Na Sr S Ta Tc Te Tb Tl Th Tm Sn Ti W U V Xe Yb Y Zn Zr 80 42 60 10 93 28 41 7 102 76 8 46 15 78 94 84 19 59 61 91 88 86 75 45 37 44 104 62 21 34 14 47 11 38 16 73 43 52 65 81 90 69 50 22 74 92 23 54 70 39 30 40 200.6 95.9 144.2 20.2 (237) 58.7 92.9 14.0 (259) 190.2 16.0 106.4 31.0 195.1 (244) (209) 39.1 140.9 (145) 231.0 (226) (222) 186.2 102.9 85.5 101.1 (261) 150.4 45.0 79.0 28.1 107.9 23.0 87.6 32.1 180.9 (98) 127.6 158.9 204.4 232.0 168.9 118.7 47.9 183.8 238.0 50.9 131.3 173.0 88.9 65.4 91.2 Chemistry 12 NAMES, FORMULAE, AND CHARGES OF SOME COMMON IONS * Aqueous solutions are readily oxidized by air. ** Not stable in aqueous solutions. Positive Ions (Cations) Al3+ Aluminum Pb4+ NH4+ Ammonium Li+ Lead(IV), plumbic Lithium Ba2+ Barium Mg2+ Magnesium Ca2+ Calcium Mn2+ Manganese(II), manganous Cr2+ Chromium(II), chromous Mn4+ Manganese(IV) Cr3+ Chromium(III), chromic Hg22+ Mercury(I)*, mercurous Cu+ Copper(I)*, cuprous Cu2+ Hg2+ K+ Copper(II), cupric Mercury(II), mercuric Potassium Hydrogen Ag+ Silver Hydronium Na+ Sodium Fe2+ Iron(II)*, ferrous Sn2+ Tin(II)*, stannous Fe3+ Iron(III), ferric Sn4+ Tin(IV), stannic Pb2+ Lead(II), plumbous Zn2+ Zinc Bromide OH– Hydroxide CO32– Carbonate ClO– Hypochlorite ClO3– Chlorate I– Cl– Chloride HPO42– ClO2– Chlorite NO3– Nitrate Chromate NO2– Nitrite H+ H3O+ Negative Ions (Anions) Br– CrO42– CN– Cr2O72– Dichromate H2PO4– Dihydrogen phosphate CH3COO – F– HCO3– Ethanoate, acetate C2O42– O2– ClO4– MnO4– Monohydrogen phosphate Oxalate Oxide** Perchlorate Permanganate Fluoride PO4?– Phosphate Hydrogen carbonate, bicarbonate SO42– Sulphate S2– Sulphide HC2O4– Hydrogen oxalate, binoxalate HSO4– Hydrogen sulphate, bisulphate SO32– Sulphite HS– Hydrogen sulphide, bisulphide SCN– Thiocyanate HSO3– Chemistry 12 Cyanide Iodide Hydrogen sulphite, bisulphite Data Page SOLUBILITY OF COMMON COMPOUNDS IN WATER The term soluble here means > 0.1 mol/L at 25°C. Positive Ions (Cations) Solubility of Compounds All Alkali ions: Li+, Na+, K+, Rb+, Cs+, Fr+ Soluble All Hydrogen ion: H+ Soluble All Ammonium ion: NH4+ Soluble Nitrate, NO3– All Soluble All others Soluble – Bromide, Br Sulphate, SO42– 123 Iodide, I– Sulphide, S 123 or Chloride, Cl– 2– 123 or 14243 Negative Ions (Anions) Hydroxide, OH or or Data Page 14253 – Phosphate, PO43– 2– Carbonate, CO3 Sulphite, SO32– Ag+, Pb2+, Cu+ All others Low Solubility Soluble Ag+, Ca2+, Sr2+, Ba2+, Pb2+ Alkali ions, H+, NH4+, Be2+, Mg2+, Ca2+, Sr2+, Ba2+ Low Solubility Soluble All others Alkali ions, H+, NH4+, Sr2+ ? Low Solubility Soluble Low Solubility All others Alkali ions, H+, NH4+ All others Soluble Low Solubility Chemistry 12 SOLUBILITY PRODUCT CONSTANTS AT 25°C Chemistry 12 Name Formula K sp Barium carbonate BaCO3 2.6 10–9 Barium chromate BaCrO4 1.2 10–10 Barium sulphate BaSO4 1.1 10–10 Calcium carbonate CaCO3 5.0 10–9 Calcium oxalate CaC2O4 2.3 10–9 Calcium sulphate CaSO4 7.1 10–5 Copper(I) iodide CuI 1.3 10–12 Copper(II) iodate Cu(IO3)2 6.9 10–8 Copper(II) sulphide CuS 6.0 10–37 Iron(II) hydroxide Fe(OH)2 4.9 10–17 Iron(II) sulphide FeS 6.0 10–19 Iron(III) hydroxide Fe(OH)3 2.6 10–39 Lead(II) bromide PbBr2 6.6 10–6 Lead(II) chloride PbCl2 1.2 10–5 Lead(II) iodate Pb(IO3)2 3.7 10–13 Lead(II) iodide PbI2 8.5 10–9 Lead(II) sulphate PbSO4 1.8 10–8 Magnesium carbonate MgCO3 6.8 10–6 Magnesium hydroxide Mg(OH)2 5.6 10–12 Silver bromate AgBrO3 5.3 10–5 Silver bromide AgBr 5.4 10–13 Silver carbonate Ag2CO3 8.5 10–12 Silver chloride AgCl 1.8 10–10 Silver chromate Ag2CrO4 1.1 10–12 Silver iodate AgIO3 3.2 10–8 Silver iodide AgI 8.5 10–17 Strontium carbonate SrCO3 5.6 10–10 Strontium fluoride SrF2 4.3 10–9 Strontium sulphate SrSO4 3.4 10–7 Zinc sulphide ZnS 2.0 10–25 Data Page RELATIVE STRENGTHS OF BRØNSTED-LOWRY ACIDS AND BASES in aqueous solution at room temperature. STRONG Name of Acid Iodic Oxalic H2C2O4 H 2 SO 3 Hydrogen sulphate ion HSO 4 − Phosphoric H 3 PO 4 Citric Nitrous Hydrofluoric Methanoic, formic Fe(H 2 O)6 3 + H 3C 6 H 5 O 7 HNO 2 HF HCOOH Hexaaquochromium ion, chromium( III ) ion Cr(H 2 O)6 3 + Benzoic C 6 H 5COOH Hydrogen oxalate ion Ethanoic, acetic HC 2 O 4 − CH 3COOH Dihydrogen citrate ion H 2 C 6 H 5O 7 − Hexaaquoaluminum ion, aluminum ion Al(H 2 O)6 3 + Carbonic (CO 2 + H 2 O) Monohydrogen citrate ion Hydrogen sulphite ion Hydrogen sulphide Dihydrogen phosphate ion Boric Ammonium ion Hydrocyanic Phenol Hydrogen carbonate ion H 2 CO 3 HC 6 H 5O 7 2 − HSO 3 − H 2S H 2 PO 4 − H 3 BO 3 NH 4 + HCN C 6 H 5OH HCO 3 − → → → → → → → ← H+ H+ H+ H+ H+ H+ H+ Ka + ClO 4 − + I− + Br − + Cl − + NO 3 − + HSO 4 − + H2O − + → ← H + IO 3 − + → ← H + HC 2 O 4 − + → ← H + HSO 6.0 × 10 − 3 7.1 × 10 − 4 + 2+ → ← H + Cr(H 2 O)5 (OH) + − → ← H + C 6 H 5COO 2− + → ← H +C O 1.5 × 10 − 4 2 3.5 × 10 − 4 1.8 × 10 − 4 4 6.5 × 10 − 5 6.4 × 10 − 5 + − → ← H + CH 3COO 2− + → ← H + HC 6 H 5O 7 + 2+ → ← H + Al(H O) (OH) 1.8 × 10 − 5 − + → ← H + HCO 3 3− + → ← H + C 6 H 5O 7 → H + + SO 2 − ← 3 + − → ← H + HS → H + + HPO 2 − ← 4 − + → H + H BO ← 2 3 + → ← H + NH 4.3 × 10 − 7 2 3 − 5 1.7 × 10 − 5 1.4 × 10 − 5 4.1 × 10 − 7 1.0 × 10 − 7 9.1 × 10 − 8 6.2 × 10 − 8 7.3 × 10 −10 5.6 × 10 −10 + → ← H + CN + − → ← H + C 6 H 5O 2− + → ← H + CO 4.9 × 10 −10 2.4 × 10 −12 3 ← H + + O2 − NH 3 + ← H + NH 2 1.3 × 10 −10 5.6 × 10 −11 2.2 × 10 −13 1.0 × 10 −14 very small − very small STRONG OH − Data Page 7.5 × 10 − 3 4.6 × 10 − 4 Hydroxide ion Ammonia 7 1.2 × 10 − 2 → H + + NO ← 2 + − → H + F ← + − → ← H + HCOO H2O HPO 4 2 − 1.5 × 10 − 2 6 5 − Water Monohydrogen phosphate ion H2O2 5.9 × 10 − 2 + → ← H + SO 4 − + → ← H + H 2 PO 4 + 2+ → ← H + Fe(H 2 O)5 (OH) − + → ← H +H C H O 2 large large large large large large 1.7 × 10 −1 3 2− → H + + HO − ← 2 3− + → H + PO ← 4 + − → ← H + OH Hydrogen peroxide very very very very very very 1.0 STRENGTH OF BASE STRENGTH OF ACID HIO 3 Sulphurous (SO 2 + H 2 O) Hexaaquoiron ion, iron( III ) ion WEAK HClO 4 HI HBr HCl HNO 3 H 2 SO 4 H 3O + Base WEAK Perchloric Hydriodic Hydrobromic Hydrochloric Nitric Sulphuric Hydronium Ion Acid Chemistry 12 ACID-BASE INDICATORS Indicator Chemistry 12 pH Range in Which Colour Change Occurs Colour Change as pH Increases Methyl violet 0.0 – 1.6 yellow to blue Thymol blue 1.2 – 2.8 red to yellow Orange IV 1.4 – 2.8 red to yellow Methyl orange 3.2 – 4.4 red to yellow Bromcresol green 3.8 – 5.4 yellow to blue Methyl red 4.8 – 6.0 red to yellow Chlorophenol red 5.2 – 6.8 yellow to red Bromthymol blue 6.0 – 7.6 yellow to blue Phenol red 6.6 – 8.0 yellow to red Neutral red 6.8 – 8.0 red to amber Thymol blue 8.0 – 9.6 yellow to blue Phenolphthalein 8.2 – 10.0 colourless to pink Thymolphthalein 9.4 – 10.6 colourless to blue Alizarin yellow 10.1 – 12.0 yellow to red Indigo carmine 11.4 – 13.0 blue to yellow Data Page STANDARD REDUCTION POTENTIALS OF HALF-CELLS Ionic concentrations are at 1M in water at 25°C. Oxidizing Agents F2 (g) + 2 e − STRONG + 2e − H 2 O 2 + 2H + + 2e − MnO 4 − + 8H + + 5e − Au 3+ + 3e − BrO 3 − + 6H + + 5e − ClO 4 − + 8H + + 8e − Cl 2 (g) + 2 e − Cr2 O 7 2 − + 14H + + 6e − 1 2 O 2 (g) + 2 H + + 2 e − MnO 2 (s) + 4H + + 2 e − IO 3 − + 6H + + 5e − Br2 (l) + 2 e − AuCl 4 − + 3e − NO 3 − + 4H + + 3e − Hg 2 + + 2 e − 1 2 O 2 (g) + 2 H + (10 −7 M ) + 2 e − 2 NO 3 − + 4H + + 2 e − Ag + + e − 1 2 Hg 2 2 + + e − STRENGTH OF OXIDIZING AGENT O 2 (g) + 2 H + + 2 e − MnO 4 − + 2 H 2 O + 3e − I 2 (s) + 2 e − Cu + + e − H 2 SO 3 + 4H + + 4e − Cu 2 + + 2 e − SO 4 2 − + 4H + + 2 e − Cu 2+ +e − Sn 4 + + 2 e − S(s) + 2 H + + 2 e − 2H + + 2e − Pb 2 + + 2 e − Sn 2 + + 2 e − Ni 2 + + 2 e − H 3 PO 4 + 2 H + + 2 e − Co 2 + + 2 e − Se(s) + 2 H + + 2 e − Cr 3+ + e − 2H 2 O + 2e − Overpotential Effect Fe 2+ + 2e − Ag 2 S(s) + 2 e − Cr 3+ + 3e − Zn 2 + + 2 e − Te(s) + 2 H + + 2 e − 2H 2 O + 2e − Mn 2 + + 2 e − Al 3+ + 3e − Mg 2 + + 2 e − → Mn + 4H O ← 2 → ← Au(s) 1 → Br (l) + 3H O ← +1.51 + 2.01 +1.78 2 2+ +1.50 2 +1.48 − → ← Cl + 4H 2 O − → ← 2Cl 3+ → ← 2Cr + 7H O +1.36 2 2 2 → ← H2O 2+ → ← Mn + 2 H 2 O 1 → I (s) + 3H O ← 2 2 2 − → ← 2 Br → ( ) + 4Cl − Au s ← → ( ) + 2H O NO g ← 2 → ← Hg(l) → ← H2O → ← N 2 O 4 + 2H 2 O → Ag(s) ← → ← Hg(l) 2+ → ← Fe +1.39 +1.23 +1.23 +1.22 +1.20 +1.09 +1.00 + 0.85 + 0.82 + 0.80 + 0.80 + 0.80 + 0.77 → ← H2O2 − → ← MnO 2 (s) + 4OH − → ← 2I + 0.70 → ← Cu(s) → ← S(s) + 3H 2 O → ← Cu(s) + 0.52 → ← H 2 SO 3 + H 2 O + → ← Cu 2+ → Sn ← + 0.17 + 0.60 + 0.54 + 0.45 + 0.34 + 0.15 + 0.15 → ← H 2 S(g) → ← H 2 (g) → ← Pb(s) + 0.14 → ← Sn(s) → ← Ni(s) → H PO + H O ← 3 3 2 → ← Co(s) → ← H Se − 0.14 2 2+ + 0.00 − 0.13 − 0.26 − 0.28 − 0.28 − 0.40 → ← Cr − −7 → ← H 2 + 2 OH (10 M ) − 0.41 → ← Fe(s) 2− → ← 2 Ag(s) + S → ← Cr(s) − 0.45 → ← Zn(s) → ← H 2 Te − → ← H (g) + 2 OH − 0.76 → ← Mn(s) → ← Al(s) → ← Mg(s) −1.19 2 − 0.41 − 0.69 − 0.74 − 0.79 − 0.83 −1.66 − 2.37 − 2.93 Cs + + e − → ← K(s) → ← Rb(s) → ← Cs(s) − 3.03 Li + + e − → ← Li(s) − 3.04 2+ + 2e − Ba 2 + + 2 e − K+ + e− Rb + + e − − 2.87 − 2.89 − 2.91 − 2.98 STRONG Sr 2 + + 2 e − Overpotential Effect + 0.96 − 2.71 Ca WEAK + 2.87 → ← Na(s) → ← Ca(s) → ← Sr(s) → ← Ba(s) Na + + e − Data Page − → ← 2F 2− → ← 2SO 4 → ← 2H O STRENGTH OF REDUCING AGENT Fe 3+ + e − E° (Volts) WEAK S2 O 8 2− Reducing Agents Chemistry 12 MINISTRY USE ONLY MINISTRY USE ONLY MINISTRY USE ONLY Question 1 0 1 2 3 4 (.5) NR 3 4 (.5) NR 3 4 (.5) NR Examination Rules Question 2 1. The time allotted for this examination is two hours. You may, however, take up to 60 minutes of additional time to finish. 2. Answers entered in the Examination Booklet will not be marked. 0 Place Personal Education Number (PEN) here. Question 3 0 • Students must not be in possession of or have used any secure examination materials prior to the examination session. • Students must not give or receive assistance of any kind in answering an examination question during an examination, including allowing one’s paper to be viewed by others or copying answers from another student’s paper. • Students must not possess any book, paper or item that might assist in writing an examination, including a dictionary or piece of electronic equipment, that is not specifically authorized for the examination by ministry policy. • Students must not copy, plagiarize or present as one’s own, work done by any other person. • Students must immediately follow the invigilator’s order to stop writing at the end of the examination time and must not alter an Examination Booklet, Response Booklet or Answer Sheet after the invigilator has asked students to hand in examination papers. • Students must not remove any piece of the examination materials from the examination room, including work pages. 4. The use of inappropriate language or content may result in a mark of zero being awarded. 5. Upon completion of the examination, return all examination materials to the supervising invigilator. 2 Place Personal Education Number (PEN) here. 3. Cheating on an examination will result in a mark of zero. The Ministry of Education considers cheating to have occurred if students break any of the following rules: • Students must not communicate with other students during the examination. 1 1 2 Question 4 0 Course Code = CH 12 Chemistry 12 2008/09 Released Exam JUNE 2009 Response Booklet Instructions: Answer the following questions in the space provided in this Response Booklet. You are expected to communicate your knowledge and understanding of chemical principles in a clear and logical manner. Your steps and assumptions leading to a solution must be written in this Response Booklet. Answers must include units where appropriate and be given to the correct number of significant figures. For questions involving calculations, full marks will NOT be given for providing only an answer. A B C D E F 2 3 (.5) NR 12 Course Code = CH 2008/09 Released Exam JUNE 2009 Exam Booklet Form/ , Cahier d examen 1 Question 5 0 G 1 2 3 4 5 (.5) NR H Question 6 0 Student Instructions 1. Place your Personal Education Number (PEN) label at the top of this Booklet AND fill in the bubble (Form A, B, C, D, E, F, G or H) that corresponds to the letter on your Examination Booklet. 1 2 3 Question 7 0 1 2 3 (.5) NR 4 (.5) NR Question 8 0 1 2 3 (.5) NR 2. Use a pencil to fill in bubbles when answering questions on your Answer Sheet. 3. Use a pencil or blue- or black-ink pen when answering written-response questions in this Booklet. 4. When the examination begins, remove the Data Pages located in the centre of the Examination Booklet. 5. Read the Examination Rules on the back of this Booklet. 814 © Province of British Columbia Version 0601.1 MINISTRY USE ONLY MINISTRY USE ONLY MINISTRY USE ONLY Question 1 0 1 2 3 4 (.5) NR 3 4 (.5) NR 3 4 (.5) NR Examination Rules Question 2 1. The time allotted for this examination is two hours. You may, however, take up to 60 minutes of additional time to finish. 2. Answers entered in the Examination Booklet will not be marked. 0 Place Personal Education Number (PEN) here. Question 3 0 • Students must not be in possession of or have used any secure examination materials prior to the examination session. • Students must not give or receive assistance of any kind in answering an examination question during an examination, including allowing one’s paper to be viewed by others or copying answers from another student’s paper. • Students must not possess any book, paper or item that might assist in writing an examination, including a dictionary or piece of electronic equipment, that is not specifically authorized for the examination by ministry policy. • Students must not copy, plagiarize or present as one’s own, work done by any other person. • Students must immediately follow the invigilator’s order to stop writing at the end of the examination time and must not alter an Examination Booklet, Response Booklet or Answer Sheet after the invigilator has asked students to hand in examination papers. • Students must not remove any piece of the examination materials from the examination room, including work pages. 4. The use of inappropriate language or content may result in a mark of zero being awarded. 5. Upon completion of the examination, return all examination materials to the supervising invigilator. 2 Place Personal Education Number (PEN) here. 3. Cheating on an examination will result in a mark of zero. The Ministry of Education considers cheating to have occurred if students break any of the following rules: • Students must not communicate with other students during the examination. 1 1 2 Question 4 0 Course Code = CH 12 Chemistry 12 2008/09 Released Exam JUNE 2009 Response Booklet Instructions: Answer the following questions in the space provided in this Response Booklet. You are expected to communicate your knowledge and understanding of chemical principles in a clear and logical manner. Your steps and assumptions leading to a solution must be written in this Response Booklet. Answers must include units where appropriate and be given to the correct number of significant figures. For questions involving calculations, full marks will NOT be given for providing only an answer. A B C D E F 2 3 (.5) NR 12 Course Code = CH 2008/09 Released Exam JUNE 2009 Exam Booklet Form/ , Cahier d examen 1 Question 5 0 G 1 2 3 4 5 (.5) NR H Question 6 0 Student Instructions 1. Place your Personal Education Number (PEN) label at the top of this Booklet AND fill in the bubble (Form A, B, C, D, E, F, G or H) that corresponds to the letter on your Examination Booklet. 1 2 3 Question 7 0 1 2 3 (.5) NR 4 (.5) NR Question 8 0 1 2 3 (.5) NR 2. Use a pencil to fill in bubbles when answering questions on your Answer Sheet. 3. Use a pencil or blue- or black-ink pen when answering written-response questions in this Booklet. 4. When the examination begins, remove the Data Pages located in the centre of the Examination Booklet. 5. Read the Examination Rules on the back of this Booklet. 814 © Province of British Columbia Version 0601.1 PART B: WRITTEN RESPONSE Value: 37.5% of the examination Suggested Time: 40 minutes 1. (4 marks) A student burned a paraffin candle ( C25 H 52 ) in an open beaker according to the following equation: C25 H 52 ( s ) + 38 O 2 ( g ) 25CO 2 ( g ) + 26 H 2 O ( g ) The following data was recorded: Time (min) Mass of candle and beaker (g) 0.0 175.00 2.0 173.20 Calculate the rate of paraffin consumption in moles of C25 H 52 per minute ( mol C25 H 52 min ) ; then, calculate how long it would take to produce 0.70 g CO 2 . Chemistry 12 – 0906 Response Booklet Page 1 2. (4 marks) Consider the following equilibrium: CO ( g ) + 3H 2 ( g ) CH 4 ( g ) + H 2 O ( g ) Initially, 0.200 mol CO and 0.600 mol H 2 are placed in a 2.00 L container. At equilibrium, [ H 2O ] = 0.039 M . Calculate the value of K eq . Page 2 Chemistry 12 – 0906 Response Booklet 3. (4 marks) Consider the following equilibrium: 2+ Mg ( OH )2 ( s ) Mg ( aq ) + 2OH ( aq ) What happens to the amount of solid Mg ( OH ) 2 when some HCl is added? On the graph below, sketch the effect of adding HCl at time t 1 . Mg2+ Concentration (M) OH- t1 Chemistry 12 – 0906 Response Booklet Time (s) Page 3 4. (3 marks) A solution of Sr ( OH )2 ( aq ) is titrated with H 2SO 4 . Explain what will happen to the electrical conductivity during the titration. Begin by writing the balanced formula equation, including states, to support your answer. Page 4 Chemistry 12 – 0906 Response Booklet 5. (5 marks) Aniline ( C6 H 5 NH 2 ) is a weak base with a K b = 4.3 10 10 . Calculate the concentration of an aniline solution that has a pH = 8.80 . Begin by writing the equation for the predominant equilibrium. Chemistry 12 – 0906 Response Booklet Page 5 6. (3 marks) Calculate the [ OH ] that results when 800.0 mL of 0.010 M HCl is mixed with 1.216 g Sr ( OH )2 . (Assume no volume change on mixing.) Page 6 Chemistry 12 – 0906 Response Booklet 7. (4 marks) Balance the following redox equation in acidic solution: Te O 4 + In In 2 O3 + Te Chemistry 12 – 0906 Response Booklet (acidic) Page 7 8. (3 marks) Consider the following cell diagram: Power Supply – + Cu(s) Pb(s) 1 M K2SO4 Write the overall cell reaction. Write the formula for a precipitate that forms as the cell operates. Page 8 Chemistry 12 – 0906 Response Booklet MINISTRY USE ONLY MINISTRY USE ONLY MINISTRY USE ONLY Question 1 0 1 2 3 4 (.5) NR 3 4 (.5) NR 3 4 (.5) NR Examination Rules Question 2 1. The time allotted for this examination is two hours. You may, however, take up to 60 minutes of additional time to finish. 2. Answers entered in the Examination Booklet will not be marked. 0 Place Personal Education Number (PEN) here. Question 3 0 • Students must not be in possession of or have used any secure examination materials prior to the examination session. • Students must not give or receive assistance of any kind in answering an examination question during an examination, including allowing one’s paper to be viewed by others or copying answers from another student’s paper. • Students must not possess any book, paper or item that might assist in writing an examination, including a dictionary or piece of electronic equipment, that is not specifically authorized for the examination by ministry policy. • Students must not copy, plagiarize or present as one’s own, work done by any other person. • Students must immediately follow the invigilator’s order to stop writing at the end of the examination time and must not alter an Examination Booklet, Response Booklet or Answer Sheet after the invigilator has asked students to hand in examination papers. • Students must not remove any piece of the examination materials from the examination room, including work pages. 4. The use of inappropriate language or content may result in a mark of zero being awarded. 5. Upon completion of the examination, return all examination materials to the supervising invigilator. 2 Place Personal Education Number (PEN) here. 3. Cheating on an examination will result in a mark of zero. The Ministry of Education considers cheating to have occurred if students break any of the following rules: • Students must not communicate with other students during the examination. 1 1 2 Question 4 0 Course Code = CH 12 Chemistry 12 2008/09 Released Exam JUNE 2009 Response Booklet Instructions: Answer the following questions in the space provided in this Response Booklet. You are expected to communicate your knowledge and understanding of chemical principles in a clear and logical manner. Your steps and assumptions leading to a solution must be written in this Response Booklet. Answers must include units where appropriate and be given to the correct number of significant figures. For questions involving calculations, full marks will NOT be given for providing only an answer. A B C D E F 2 3 (.5) NR 12 Course Code = CH 2008/09 Released Exam JUNE 2009 Exam Booklet Form/ , Cahier d examen 1 Question 5 0 G 1 2 3 4 5 (.5) NR H Question 6 0 Student Instructions 1. Place your Personal Education Number (PEN) label at the top of this Booklet AND fill in the bubble (Form A, B, C, D, E, F, G or H) that corresponds to the letter on your Examination Booklet. 1 2 3 Question 7 0 1 2 3 (.5) NR 4 (.5) NR Question 8 0 1 2 3 (.5) NR 2. Use a pencil to fill in bubbles when answering questions on your Answer Sheet. 3. Use a pencil or blue- or black-ink pen when answering written-response questions in this Booklet. 4. When the examination begins, remove the Data Pages located in the centre of the Examination Booklet. 5. Read the Examination Rules on the back of this Booklet. 814 © Province of British Columbia Version 0601.1