Chapter 11 Practice Test

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Chapter 11 Practice Test Multiple Choice Identify the choice that best completes the statement or answers the question. *You will need your own calculator for blast from the past questions. 1. Some of the molecules found in the human body are NHCHCOOH (glycine), CHO(glucose), and CH3(CH2)16COOH (stearic acid). The bonds they form are a. covalent c. metallic b. ionic d. nuclear 2. H2O2, hydrogen peroxide, naturally breaks down into HO2 and O2 over time. MnO2,manganese dioxide, can be used to lower the energy of activation needed for this reaction to take place and, thus, increase the rate of reaction. What type of substance is MnO 2? a. an inhibitor c. a product b. a catalyst d. a reactant 3. This chemical equation represents the combustion of propane. When correctly balanced, the coefficient for water is a. 2 c. 8 b. 4 d. 16 4. Which of the following is a balanced equation for the combustion of ethanol (CH3CH2OH)? a. CH3CH2OH + 3O2 CO2 + 2H2O c. CH3CH2OH + O2 2CO2 + 3H2O b. CH3CH2OH + 3O2 2CO2 + 3H2O d. CH3CH2OH + 3O2 2CO2 + 2H2O 5. Classify the following reaction. a. combination c. single replacement b. double replacement d. combustion 6. What type of reaction is the reaction below? _a_ Fe2O3 _b_ Fe + _c_ O2 a. Synthesis/Combination c. Combustion b. Decomposition d. Single Replacement 7. What type of reaction is the reaction below? _a_ Al + _b_ CuSO4 _c_ Al2(SO4)3 + _d_cu a. Synthesis/Combination c. Double Replacement b. Decomposition d. Single Replacement 8. What type of reaction is the reaction below? _a_ NaF + _b_ AgNO3? a. Double Replacement c. Synthesis/Combination b. Decomposition d. Single Replacement

9. What type of reaction is the reaction below? _a_ Mg + _b_ H2SO4? a. Double Replacement c. Synthesis/Combination b. Decomposition d. Single Replacement 10. Select the set of coefficients that properly balance the equation below. _a_ Fe2O3 _b_ Fe + _c_ O2 a. 2, 4, 3 c. 1, 2, 3, 2, 3 d. 3, 4, 4 11. Select the set of coefficients that properly balance the equation below. _a_ Pb(NO3)2 + _b_ NH4Cl _c_ PbCl2 + _d_ NH4NO3, 2, 1, 2 c. 2, 1, 2, 1 b. 1, 2, 2, 1 d. 1, 2, 2, 2 12. The following reactants would produce what type of reaction? _a_ NaF + _b_ AgNO3? a. double replacement c. combustion b. single replacement d. combination 13. The following reactants would produce what type of reaction? _a_ Mg + _b_ H2SO4? a. double replacement c. combustion b. single replacement d. decomposition 14. The products created from the reactants below would be: _a_ MgO + _b_ H2O? a. acid b. base 15. The products created from the reactants below would be: _a_ SO2 + _b_ H2O? a. acid b. base 16. The products created from the reactants below would be: _a_ CH3OH + _b_ O2O? a. CO2 + OH c. CO2 b. CO2 + H2O d. CO2 + H2 17. An acid and base form what products? a. water c. water + salt b. salt d. hydrogen gas + salt 18. The correct balanced equation for the reaction below is: _a_ K+ _b_ H2O KOH + H2 a. 2,2,2,1 c. 2,1,1,1,2,1,1 d. 2,1,1,2 19. Chlorine Gas is bubbled through a solution of calcium bromide at room temperature and produces bromine gas and calcium chloride. Choose all the correct product(s) for the reaction. a. Br2 c. BrCl

b. Br2 + CaCl2 d. CaCl2 + Br 20. A flaming splint of wood is extinguished by what gas? a. carbon dioxide c. water b. oxygen d. hydrogen 21. A glowing splint of wood ignites from what gas? a. carbon dioxide c. water b. oxygen d. hydrogen 22. Phenolphthalein indicator turns pink from the presence of a: a. base c. acid b. oxygen d. water 23. Cu(s) + O2(g). The following reactants would produce what type of reaction? a. decomposition c. double replacement b. single replacement d. combination 24. Two reactants are combined to produce a salt and water; these are the products of a reaction between: a. a nonmetallic oxide and water c. an acid and a base b. a metallic oxide and water d. a carbohydrate and oxygen 25. _a_ LiOH + _b_ H3PO4? +? + This reaction represents a special (exceptional) case of a reaction, which is the: a. formation of an acid c. acid-base neutralization b. formation of a base d. formation of hydrogen gas 26. Hydrogen peroxide breaks down in the presence of mangenese dioxide to produce a vapor that is steam and a gas that relights a glowing splint: a. H2O(l) + MnO3 (g) c. H2O(l) + O2 (g) b. H2O(g) + O2 (g) d. H2O(l) + MnO2 (g) 27. Al + CuSO 4 Cu + Al 2(SO 4) 3 Predict the products and then balance the reactions and choose the correct coefficients. a. 4, 3, 2, 6 c. 2, 3, 1, 3, 1, 1, 3 d. 2, 1, 3, 6 28. Li 2O + H 2O? The product for this reaction could be classified as a(an)? a. acid b. base 29. The hydrocarbon C4H10 burns in the air, the correct coefficients for the balanced equation are: (write the equation first),7,4,5,26,16,20 b. 1,4,4,5 e. already balanced c. 2,13,8,10 30. Which of the following is a monatomic gas at STP? a. Bromine c. Fluorine b. Nitrogen d. Krypton 31. Which of the following are combustion reactions? 1) CH 4 (g) + O 2 (g) CO 2 (g) + H 2O (l)

2) CaO (s) + CO 2 (g) CaCO 3 (s) 3) PbCO 3 (s) PbO (s) + CO 2 (g) 4) CH 3OH (l) + O 2 (g) CO 2 (g) + H 2O (l) and 4 b. 1, 2, 3, and 4 c. 1, 3, and 4 d. 2, 3, and 4 e. 3 and 4 32. When the following equation is balanced, the coefficients are. C 8H 18 + O 2 CO 2 + H 2O a. 4, 50, 16, 18 b. 1, 5, 2, 2 c. 2, 2, 7, 1 d. 1, 13, 8, 9 e. 2, 25, 16, 18 33. Lithium and nitrogen react to produce lithium nitride: Li (s) + N 2 (g) Li 3N (s) The correct coefficients for this reaction are: a. 6,1,2 b. 1,1,2,2,1 d. 3,2,2 34. Of the reactions below, which one is not a combination reaction? a. C + O 2 CO 2 Mg + O 2 2MgO c. 2N 2 + 3H 2 2NH 3 d. CaO + H 2O Ca(OH) 2 e. 2CH 4 + 4O 2 2CO 2 + 4H 2O 35. When a hydrocarbon burns in air, what component of air reacts? a. oxygen b. nitrogen c. carbon dioxide d. water e. argon 36. Of the reactions below, which one is a decomposition reaction? a. NH 4Cl NH 3 + HCl Mg + O 2 2MgO c. 2N 2 + 3H 2 2NH 3 d. 2CH 4 + 4O 2 2CO 2 + 4H 2O e. Cd(NO 3) 2 + Na 2S CdS + 2NaNO 3 37. Which of the following are combination reactions? 1) CH 4 (g) + O 2 (g) CO 2 (g) + H 2O (l) 2) CaO (s) + CO 2 (g) CaCO 3 (s) 3) Mg (s) + O 2 (g) MgO (s) 4) PbCO 3 (s) PbO (s) + CO 2 (g)

, 2, and 3 and 3 c. 1, 2, 3, and 4 only e. 2, 3, and 4 38. Which of the following are decomposition reactions? 1) CH 4 (g) + O 2 (g) CO 2 (g) + H 2O (l) 2) CaO (s) + CO 2 (g) CaCO 3 (s) 3) Mg (s) + O 2 (g) MgO (s) 4) PbCO 3 (s) PbO (s) + CO 2 (g), 2, and 3 b. 4 only c. 1, 2, 3, and 4 d. 2 and 3 e. 2, 3, and 4 39. When the following equation is balanced, the coefficients are. NH 3 (g) + O 2 (g) NO 2 (g) + H 2O (g), 1, 1, 1 b. 4, 7, 4, 6 c. 2, 3, 2, 3 d. 1, 3, 1, 2 e. 4, 3, 4, 3 40. When the following equation is balanced, the coefficients are. Al(NO 3) 3 + Na 2S Al 2S 3 + NaNO 3 a. 2, 3, 1, 6, 1, 3, 2 c. 1, 1, 1, 1, 6, 3, 2 e. 2, 3, 2, 3 41. When the following equation is balanced, the coefficient of H2 is. K (s) + H 2O (l) KOH (aq) + H 2 (g) e. 5 42. When the following equation is balanced, the coefficient of Al is. Al (s) + H 2O (l) Al(OH) 3 (s) + H 2 (g) d. 5 e. 4 43. When the following equation is balanced, the coefficient of H 2O is.

Ca (s) + H 2O (l) Ca(OH) 2 (aq) + H 2 (g) d. 5 e. 4 44. When the following equation is balanced, the coefficient of Al 2O 3 is. Al 2O 3 (s) + C (s) + Cl 2 (g) AlCl 3 (s) + CO (g) e. 5 45. When the following equation is balanced, the coefficient of H 2S is. FeCl 3 (aq) + H 2S (g) Fe 2S 3 (s) + HCl (aq) d. 5 e. 4 46. When the following equation is balanced, the coefficient of HCl is. CaCO 3 (s) + HCl (aq) CaCl 2 (aq) + CO 2 (g) + H 2O (l) e. 0 47. When the following equation is balanced, the coefficient of HNO 3 is. HNO 3 (aq) + CaCO 3 (s) Ca(NO 3) 2 (aq) + CO 2 (g) + H 2O (l) d. 5 e. 4 48. When the following equation is balanced, the coefficient of H 3PO 4 is. H 3PO 4 (aq) + NaOH (aq) Na 3PO 4 (aq) + H 2O (l) e. 0 49. When the following equation is balanced, the coefficient of C 3H 8O 3 is. C 3H 8O 3 (g) + O 2 (g) CO 2 (g) + H 2O (g)

d. 7 e. 5 50. When the following equation is balanced, the coefficient of O 2 is. C 2H 4O (g) + O 2 (g) CO 2 (g) + H 2O (g) a. 2 b. 3 c. 4 d. 5 e. 1 51. Classify the following reaction. CO (g) + H 2 (g) H 2O (g) + CH 4 (g) a. combination b. combustion c. single replacement d. double replacment 52. When the following equation is balanced, the coefficient of H 2SO 4 is. H 2SO 4 (aq) + NaOH (aq) Na 2SO 4 (aq) + H 2O (l) 53. When the following equation is balanced, the coefficient of water is. K (s) + H 2O (l) KOH (aq) + H 2 (g) e. 5 54. When the following equation is balanced, the coefficient of hydrogen is. K (s) + H 2O (l) KOH (aq) + H 2 (g) e. 5 55. Balance the following equation and list the coefficients in order from left to right. SF4 + H2O H2SO3 + HF, 1, 1, 4, 6, 2, 8 c. 1, 2, 1, 4 d. 1, 3, 1, 4

56. Iron metal reacts with hydrochloric acid to produce iron (II) chloride and hydrogen gas. Identify the balanced reaction that describes this process. a. Fe + 2 HCl FeCl2 + H2 b. Fe + HCl FeCl2 + H2 c. Fe + HCl FeCl + H d. 2Fe + 2HCl 2FeCl2 + H2 57. In the chemical equation H O (aq) H O(l) O (g), the is a. a. catalyst c. product b. solid d. reactant 58. This symbol ( ) indicates that. a. heat must be applied b. an incomplete combustion reaction has occurred c. a gas is formed by the reaction d. the reaction is reversible 59. In every balanced chemical equation, each side of the equation has the same number of. a. atoms of each element c. moles b. molecules d. coefficients 60. When potassium hydroxide and barium chloride react, potassium chloride and barium hydroxide are formed. The balanced equation for this reaction is. a. KH BaCl KCl BaH c. 2KOH BaCl 2KCl Ba(OH) b. KOH BaCl KCl BaOH d. KOH BaCl KCl BaOH 61. Which of the following is the correct skeleton equation for the reaction that takes place when solid phosphorus combines with oxygen gas to form diphosphorus pentoxide? a. P(s) O (g) PO (g) c. P(s) O 2(g) P O (s) b. P(s) O(g) P O (g) d. P O (s) P (s) O (g) 62. When the equation Fe Cl FeCl is balanced, what is the coefficient for Cl? 63. The products of a combustion reaction do NOT include. a. water c. carbon monoxide b. carbon dioxide d. hydrogen 64. The equation Mg(s) 2HCl(aq) MgCl (aq) H g is an example of which type of reaction? a. combination reaction c. decomposition reaction b. single-replacement reaction d. double-replacement reaction 65. A solution of zinc sulfide (assume that zinc sulfide is soluble) reacts with oxygen gas to yield a solution of zinc sulfate. The correct skeletal chemical equation for the above reaction is: a. ZnS(l) + O2(g) ZnSO4(l). d. ZnS(aq) + O2(g) ZnSO2(aq). b. ZnS(aq) + O2(g) ZnSO4(aq). e. ZnS(aq) + O2(g) ZnSO3(aq). c. ZnS(l) + O2(g) ZnSO3(l).

Chapter 11 Practice Test Answer Section MULTIPLE CHOICE 1. ANS: A PTS: 1 2. ANS: B PTS: 1 3. ANS: B PTS: 1 4. ANS: B PTS: 1 5. ANS: B PTS: 1 6. ANS: B PTS: 1 KEY: Types of Reactions; Decomposition 7. ANS: D PTS: 1 KEY: Types of Reactions; Single Replacement 8. ANS: A PTS: 1 KEY: Types of Reactions; Double Replacement 9. ANS: D PTS: 1 KEY: Types of Reactions; Single Replacement 10. ANS: A PTS: 1 KEY: Balancing Equations 11. ANS: A PTS: 1 KEY: Balancing Equations 12. ANS: A PTS: 1 KEY: Predicting Products 13. ANS: B PTS: 1 KEY: Single Replacement; 14. ANS: B PTS: 1 KEY: Single Replacement; 15. ANS: A PTS: 1 KEY: Single Replacement; 16. ANS: B PTS: 1 KEY: Single Replacement; 17. ANS: C PTS: 1 KEY: Volume to Moles; Molar Volume 18. ANS: A PTS: 1 KEY: Predicting Products 19. ANS: B PTS: 1 KEY: Predicting Products 20. ANS: A PTS: 1 KEY: Predicting Products 21. ANS: B PTS: 1 KEY: Predicting Products 22. ANS: A PTS: 1 KEY: Predicting Products 23. ANS: D PTS: 1 KEY: Predicting Products 24. ANS: C PTS: 1 KEY: Predicting Products 25. ANS: C PTS: 1 KEY: Predicting Products 26. ANS: B PTS: 1 KEY: Predicting Products 27. ANS: C PTS: 1 28. ANS: B PTS: 1 29. ANS: C PTS: 1 30. ANS: D PTS: 1 31. ANS: A PTS: 1 32. ANS: E PTS: 1 33. ANS: A PTS: 1 34. ANS: E PTS: 1 35. ANS: A PTS: 1 36. ANS: A PTS: 1 37. ANS: B PTS: 1 38. ANS: B PTS: 1 39. ANS: B PTS: 1 40. ANS: A PTS: 1 41. ANS: A PTS: 1

42. ANS: B PTS: 1 43. ANS: B PTS: 1 44. ANS: A PTS: 1 45. ANS: C PTS: 1 46. ANS: B PTS: 1 47. ANS: B PTS: 1 48. ANS: A PTS: 1 49. ANS: B PTS: 1 50. ANS: D PTS: 1 51. ANS: B PTS: 1 52. ANS: A PTS: 1 53. ANS: B PTS: 1 54. ANS: A PTS: 1 55. ANS: D PTS: 1 56. ANS: A PTS: 1 57. ANS: C PTS: 1 58. ANS: D PTS: 1 59. ANS: A PTS: 1 60. ANS: C PTS: 1 61. ANS: C PTS: 1 62. ANS: C PTS: 1 63. ANS: D PTS: 1 64. ANS: B PTS: 1 65. ANS: B PTS: 1

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