Chapter 4 Part 1 Practice

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1 Chapter 4 Part 1 Practice Student: 1. Which of these compounds is a strong electrolyte? A. H 2 O B. O 2 C. H 2 SO 4 D. C 6 H 12 O 6 (glucose) E. CH 3 COOH (acetic acid) 2. Which of these compounds is a weak electrolyte? A. HCl B. CH 3 COOH (acetic acid) C. C 6 H 12 O 6 (glucose) D. O 2 E. NaCl 3. Which of these compounds is a nonelectrolyte? A. NaOH B. HNO 3 C. C 2 H 6 O (ethanol) D. KF E. CH 3 COOH (acetic acid) 4. Identify the major ionic species present in an aqueous solution of Na 2 CO 3. A. Na 2 +, CO 3 2- B. Na 2 +, C 2-, O 3 C. Na +, C 4+, O 3 2- D. Na +, C +, O 2- E. Na +, CO The distinguishing characteristic of all electrolyte solutions is that they A. contain molecules. B. conduct electricity. C. react with other solutions. D. always contain acids. E. conduct heat. 6. Based on the solubility rules, which one of these compounds should be insoluble in water? A. NaCl B. MgBr 2 C. FeCl 2 D. AgBr E. ZnCl 2 7. Based on the solubility rules, which one of these compounds should be insoluble in water? A. Na 2 SO 4 B. BaSO 4 C. CuSO 4 D. MgSO 4 E. Rb 2 SO 4 8. Based on the solubility rules, which one of these compounds should be insoluble in water? A. CaCO 3 B. (NH 4 ) 2 CO 3 C. Na 2 CO 3 D. K 2 CO 3 E. KNO 3 9. Based on the solubility rules, which one of these compounds should be soluble in water? A. Hg 2 Cl 2 B. Na 2 S C. Ag 2 CO 3 D. Ag 2 S E. BaSO 4

2 10. Based on the solubility rules, which one of these compounds should be soluble in water? A. AgBr B. AgCl C. Ag 2 CO 3 D. AgNO 3 E. Ag 2 S 11. Based on the solubility rules, which one of these compounds should be soluble in water? A. (NH 4 ) 3 PO 4 B. Ca 3 (PO 4 ) 2 C. AlPO 4 D. Ag 3 PO 4 E. Mg 3 (PO 4 ) Based on the solubility rules, which of these processes will occur when a solution containing about 0.1 g of Pb(NO 3 ) 2 (aq) is mixed with a solution containing 0.1 g of KI(aq)/100 ml? A. KNO 3 will precipitate; Pb 2+ and I - are spectator ions. B. No precipitate will form. C. Pb(NO 3 ) 2 will precipitate; K + and I - are spectator ions. D. PbI 2 will precipitate; K + and NO 3 - are spectator ions. E. Pb 2+ and I - are spectator ions, and PbI 2 will precipitate. 13. Based on the solubility rules, which of these processes will occur if solutions of CuSO 4 (aq) and BaCl 2 (aq) are mixed? A. CuCl 2 will precipitate; Ba 2+ and SO 2-4 are spectator ions. B. CuSO 4 will precipitate; Ba 2+ and Cl - are spectator ions. C. BaSO 4 will precipitate; Cu 2+ and Cl - are spectator ions. D. BaCl 2 will precipitate; Cu 2+ and SO 2-4 are spectator ions. E. No precipitate will form. 14. Based on the solubility rules, which of these processes will occur when solutions of ZnSO 4 (aq) and MgCl 2 (aq) are mixed? A. ZnCl 2 will precipitate; Mg 2+ and SO 2-4 will be spectator ions. B. ZnSO 4 will precipitate; Mg 2+ and Cl - will be spectator ions. C. MgSO 4 will precipitate; Zn 2+ and Cl - will be spectator ions. D. MgCl 2 will precipitate; Zn 2+ and SO 2-4 will be spectator ions. E. No precipitate will form. 15. The common constituent in all acid solutions is A. H 2. B. H +. C. OH -. D. H 2 SO 4. E. Cl Identify the major ions present in an aqueous LiOH solution. A. Li 2+, O -, H - B. Li +, OH - C. LiO -, H + D. Li +, O 2-, H + E. Li -, OH Identify the major ions present in an aqueous HNO 3 solution. A. HN +, O 2- B. OH -, NO - 3 C. OH -, NO D. H +, N 3-, O 2- E. H +, NO What is the correct formula of the salt formed in the neutralization reaction of hydrochloric acid with calcium hydroxide? A. CaO B. CaCl 2 C. CaH 2 D. CaCl E. CaClH

3 19. What is the chemical formula of the salt produced by the neutralization of nitric acid with calcium hydroxide? A. CaNO 3 B. Ca 2 (NO 3 ) 3 C. Ca 3 (NO 3 ) 2 D. Ca 2 NO 3 E. Ca(NO 3 ) What is the chemical formula of the salt produced by the neutralization of potassium hydroxide with sulfuric acid? A. KSO 3 B. K 2 (SO 4 ) 3 C. K 2 SO 4 D. K(SO 4 ) 2 E. KSO The oxidation number of N in NaNO 3 is A. +6. B. +5. C. +3. D. -3. E. none of these. 22. The oxidation number of S in K 2 SO 4 is A. +6. B. +4. C. +2. D. -1. E. none of these. 23. The oxidation number of Mn in KMnO 4 is A. +8. B. +7. C. +5. D. -7. E The oxidation number of Cr in Cr 2 O 2-7 is A B. -7. C. -2. D. +6. E The oxidation number of Cl in ClO - 3 is A. -1. B. +7. C. +5. D. +3. E. none of these. 26. The oxidation number of N in N 2 H 4 is A. +4. B. -4. C. +2. D. -2. E Which choice gives the correct oxidation numbers for all three elements in Rb 2 SO 3 in the order that the elements are shown in the formula? A. -2, +6, -2 B. -1, +4, -3 C. +2, +4, -2 D. +1, +4, -2 E. +1, +6, -6

4 28. Which one of these equations describes a redox reaction? A. 2Al(s) + 3H2 SO 4 (aq) Al 2 (SO 4 ) 3 (aq) + 3H 2 (g) B. 2KBr(aq) + Pb(NO3 ) 2 (aq) 2KNO 3 (aq) + PbBr 2 (s) C. CaBr2 (aq) + H 2 SO 4 (aq) CaSO 4 (s) + 2HBr(g) D. H + (aq) + OH - (aq) H 2 O(l) E. CO3 2- (aq) + HSO 4 - (aq) HCO 3 - (aq) + SO 4 2- (aq) 29. Which of these equations does not represent an oxidation-reduction reaction? A. 3Al + 6HCl 3H2 + AlCl 3 B. 2H2 O 2H 2 + O 2 C. 2NaCl + Pb(NO3 ) 2 PbCl 2 + 3NaNO 3 D. 2NaI + Br2 2NaBr + I 2 E. Cu(NO3 ) 2 + Zn Zn(NO 3 ) 2 + Cu 30. In the chemical reaction 5H 2 O 2 + 2MnO H + 2Mn H 2 O + 5O 2, the oxidizing agent is A. H 2 O 2. B. MnO 4 -. C. H +. D. Mn 2+. E. O In the chemical reaction 5S + 6KNO 3 + 2CaCO 3 3K 2 SO 4 + 2CaSO 4 + CO 2 + 3N 2, the oxidizing agent is A. S. B. N 2. C. KNO 3. D. CaSO 4. E. CaCO Identify the reducing agent in the chemical reaction 5Fe 2+ (aq) + MnO 4 - (aq) + 8H + (aq) 5Fe 3+ (aq) + Mn 2+ (aq) + 4H 2 O(l). A. Fe 2+ B. MnO 4 - C. H + D. Mn 2+ E. Fe Identify the reducing agent in the chemical reaction Cd + NiO 2 + 2H 2 O Cd(OH) 2 + Ni(OH) 2. A. Cd B. NiO 2 C. H 2 O D. Cd(OH) 2 E. Ni(OH) What element is oxidized in the chemical reaction 3Cu + 8HNO 3 3Cu(NO 3 ) 2 + 2NO + 4H 2 O? A. Cu B. H C. N D. O E. H 2 O 35. What element is oxidized in the chemical reaction NiO 2 + Cd + 2H 2 O Ni(OH) 2 + Cd(OH) 2? A. Ni B. Cd C. O D. H E. This is not a redox reaction.

5 36. What element is reduced in the chemical reaction Cu + 2H 2 SO 4 CuSO 4 + SO 2 + 2H 2 O? A. Cu B. H C. S D. O E. H 2 O 37. Predict the products of the single replacement reaction Fe(s) + CuSO 4 (aq)? A. Cu(s) + FeSO 4 (aq) B. Fe(s) + Cu(s) + SO 4 (aq) C. CuS(s) + Fe 2 SO 4 (aq) D. FeCuSO 4 (aq) E. FeO(s) + CuSO 3 (aq) 38. Which of these chemical equations describes a precipitation reaction? A. 2H2 (g) + O 2 (g) 2H 2 O(l) B. CaBr2 (aq) + H 2 SO 4 (aq) CaSO 4 (s) + 2HBr(g) C. 2KNO3 (s) 2KNO 2 (s) + O 2 (g) D. 2KBr(aq) + Cl2 (g) 2KCl(aq) + Br 2 (l) E. 2Al(s) + 3H2 SO 4 (aq) Al 2 (SO 4 ) 3 (aq) + 3H 2 (g) 39. Which of these chemical equations describes an acid-base neutralization reaction? A. 2Al(s) + 3H2 SO 4 (aq) Al 2 (SO 4 ) 3 (aq) + 3H 2 (g) B. SO2 (g) + H 2 O(l) H 2 SO 3 (g) C. LiOH(aq) + HNO3 (aq) LiNO 3 (aq) + H 2 O(l) D. 2KBr(aq) + Cl2 (g) 2KCl(aq) + Br 2 (l) E. CaBr2 (aq) + H 2 SO 4 (aq) CaSO 4 (s) + 2HBr(g) 40. Which of these chemical equations describes a combustion reaction? A. 2C2 H 6 (g) + 7O 2 (g) 4CO 2 (g) + 6H 2 O(l) B. LiOH(aq) + HNO3 (aq) LiNO 3 (aq) + H 2 O(l) C. N2 (g) + 3H 2 (g) 2NH 3 (g) D. 2Na(s) + 2H2 O(l) 2NaOH(aq) + H 2 (g) E. 2Al(s) + 3H2 SO 4 (aq) Al 2 (SO 4 ) 3 (aq) + 3H 2 (g) 41. What are three characteristics of a base? 42. What are three characteristics of an acid?

6 43. Give an example of a diprotic acid. 44. Write the net ionic equation for the following reaction. Aqueous iron(iii) sulfate is added to aqueous sodium sulfide to produce solid iron(iii) sulfide and aqueous sodium sulfate.

7 Chapter 4 Part 1 Practice Key 1. Which of these compounds is a strong electrolyte? A. H 2 O B. O 2 C. H 2 SO 4 D. C 6 H 12 O 6 (glucose) E. CH 3 COOH (acetic acid) 2. Which of these compounds is a weak electrolyte? A. HCl B. CH 3 COOH (acetic acid) C. C 6 H 12 O 6 (glucose) D. O 2 E. NaCl 3. Which of these compounds is a nonelectrolyte? A. NaOH B. HNO 3 C. C 2 H 6 O (ethanol) D. KF E. CH 3 COOH (acetic acid) 4. Identify the major ionic species present in an aqueous solution of Na 2 CO 3. A. Na 2 +, CO 3 2- B. Na 2 +, C 2-, O 3 C. Na +, C 4+, O 3 2- D. Na +, C +, O 2- E. Na +, CO The distinguishing characteristic of all electrolyte solutions is that they A. contain molecules. B. conduct electricity. C. react with other solutions. D. always contain acids. E. conduct heat. Raymond Reactions... #1 Raymond Reactions... #3 Raymond Reactions... #6 Raymond Reactions... #7 Raymond Reactions... #9 6. Based on the solubility rules, which one of these compounds should be insoluble in water? A. NaCl B. MgBr 2 C. FeCl 2 D. AgBr E. ZnCl 2 Raymond Reactions... #10 7. Based on the solubility rules, which one of these compounds should be insoluble in water? A. Na 2 SO 4 B. BaSO 4 C. CuSO 4 D. MgSO 4 E. Rb 2 SO 4 Raymond Reactions... #11

8 8. Based on the solubility rules, which one of these compounds should be insoluble in water? A. CaCO 3 B. (NH 4 ) 2 CO 3 C. Na 2 CO 3 D. K 2 CO 3 E. KNO 3 9. Based on the solubility rules, which one of these compounds should be soluble in water? A. Hg 2 Cl 2 B. Na 2 S C. Ag 2 CO 3 D. Ag 2 S E. BaSO Based on the solubility rules, which one of these compounds should be soluble in water? A. AgBr B. AgCl C. Ag 2 CO 3 D. AgNO 3 E. Ag 2 S 11. Based on the solubility rules, which one of these compounds should be soluble in water? A. (NH 4 ) 3 PO 4 B. Ca 3 (PO 4 ) 2 C. AlPO 4 D. Ag 3 PO 4 E. Mg 3 (PO 4 ) 2 Raymond Reactions... #12 Raymond Reactions... #13 Raymond Reactions... #14 Raymond Reactions... # Based on the solubility rules, which of these processes will occur when a solution containing about 0.1 g of Pb(NO 3 ) 2 (aq) is mixed with a solution containing 0.1 g of KI(aq)/100 ml? A. KNO 3 will precipitate; Pb 2+ and I - are spectator ions. B. No precipitate will form. C. Pb(NO 3 ) 2 will precipitate; K + and I - are spectator ions. D. PbI 2 will precipitate; K + and NO 3 - are spectator ions. E. Pb 2+ and I - are spectator ions, and PbI 2 will precipitate. Raymond Reactions... # Based on the solubility rules, which of these processes will occur if solutions of CuSO 4 (aq) and BaCl 2 (aq) are mixed? A. CuCl 2 will precipitate; Ba 2+ and SO 2-4 are spectator ions. B. CuSO 4 will precipitate; Ba 2+ and Cl - are spectator ions. C. BaSO 4 will precipitate; Cu 2+ and Cl - are spectator ions. D. BaCl 2 will precipitate; Cu 2+ and SO 2-4 are spectator ions. E. No precipitate will form. Raymond Reactions... # Based on the solubility rules, which of these processes will occur when solutions of ZnSO 4 (aq) and MgCl 2 (aq) are mixed? A. ZnCl 2 will precipitate; Mg 2+ and SO 4 2- will be spectator ions. B. ZnSO 4 will precipitate; Mg 2+ and Cl - will be spectator ions. C. MgSO 4 will precipitate; Zn 2+ and Cl - will be spectator ions. D. MgCl 2 will precipitate; Zn 2+ and SO 4 2- will be spectator ions. E. No precipitate will form. Raymond Reactions... #19

9 15. The common constituent in all acid solutions is A. H 2. B. H +. C. OH -. D. H 2 SO 4. E. Cl Identify the major ions present in an aqueous LiOH solution. A. Li 2+, O -, H - B. Li +, OH - C. LiO -, H + D. Li +, O 2-, H + E. Li -, OH Identify the major ions present in an aqueous HNO 3 solution. A. HN +, O 2- B. OH -, NO - 3 C. OH -, NO D. H +, N 3-, O 2- E. H +, NO - 3 Raymond Reactions... #21 Raymond Reactions... #22 Raymond Reactions... # What is the correct formula of the salt formed in the neutralization reaction of hydrochloric acid with calcium hydroxide? A. CaO B. CaCl 2 C. CaH 2 D. CaCl E. CaClH Raymond Reactions... # What is the chemical formula of the salt produced by the neutralization of nitric acid with calcium hydroxide? A. CaNO 3 B. Ca 2 (NO 3 ) 3 C. Ca 3 (NO 3 ) 2 D. Ca 2 NO 3 E. Ca(NO 3 ) 2 Raymond Reactions... # What is the chemical formula of the salt produced by the neutralization of potassium hydroxide with sulfuric acid? A. KSO 3 B. K 2 (SO 4 ) 3 C. K 2 SO 4 D. K(SO 4 ) 2 E. KSO The oxidation number of N in NaNO 3 is A. +6. B. +5. C. +3. D. -3. E. none of these. 22. The oxidation number of S in K 2 SO 4 is A. +6. B. +4. C. +2. D. -1. E. none of these. Raymond Reactions... #28 Raymond Reactions... #29 Raymond Reactions... #30

10 23. The oxidation number of Mn in KMnO 4 is A. +8. B. +7. C. +5. D. -7. E The oxidation number of Cr in Cr 2 O 2-7 is A B. -7. C. -2. D. +6. E The oxidation number of Cl in ClO - 3 is A. -1. B. +7. C. +5. D. +3. E. none of these. 26. The oxidation number of N in N 2 H 4 is A. +4. B. -4. C. +2. D. -2. E. 0. Raymond Reactions... #31 Raymond Reactions... #33 Raymond Reactions... #34 Raymond Reactions... # Which choice gives the correct oxidation numbers for all three elements in Rb 2 SO 3 in the order that the elements are shown in the formula? A. -2, +6, -2 B. -1, +4, -3 C. +2, +4, -2 D. +1, +4, -2 E. +1, +6, Which one of these equations describes a redox reaction? A. 2Al(s) + 3H2 SO 4 (aq) Al 2 (SO 4 ) 3 (aq) + 3H 2 (g) B. 2KBr(aq) + Pb(NO3 ) 2 (aq) 2KNO 3 (aq) + PbBr 2 (s) Raymond Reactions... #40 C. CaBr2 (aq) + H 2 SO 4 (aq) CaSO 4 (s) + 2HBr(g) D. H + (aq) + OH - (aq) H 2 O(l) E. CO3 2- (aq) + HSO 4 - (aq) HCO 3 - (aq) + SO 4 2- (aq) 29. Which of these equations does not represent an oxidation-reduction reaction? A. 3Al + 6HCl 3H2 + AlCl 3 Raymond Reactions... #41 B. 2H2 O 2H 2 + O 2 C. 2NaCl + Pb(NO3 ) 2 PbCl 2 + 3NaNO 3 D. 2NaI + Br2 2NaBr + I 2 E. Cu(NO3 ) 2 + Zn Zn(NO 3 ) 2 + Cu Raymond Reactions... #42

11 30. In the chemical reaction 5H 2 O 2 + 2MnO H + 2Mn H 2 O + 5O 2, the oxidizing agent is A. H 2 O 2. B. MnO 4 -. C. H +. D. Mn 2+. E. O 2. Difficulty: Difficult Raymond Reactions... # In the chemical reaction 5S + 6KNO 3 + 2CaCO 3 3K 2 SO 4 + 2CaSO 4 + CO 2 + 3N 2, the oxidizing agent is A. S. B. N 2. C. KNO 3. D. CaSO 4. E. CaCO Identify the reducing agent in the chemical reaction 5Fe 2+ (aq) + MnO 4 - (aq) + 8H + (aq) 5Fe 3+ (aq) + Mn 2+ (aq) + 4H 2 O(l). A. Fe 2+ B. MnO 4 - C. H + D. Mn 2+ E. Fe Identify the reducing agent in the chemical reaction Cd + NiO 2 + 2H 2 O Cd(OH) 2 + Ni(OH) 2. A. Cd B. NiO 2 C. H 2 O D. Cd(OH) 2 E. Ni(OH) What element is oxidized in the chemical reaction 3Cu + 8HNO 3 3Cu(NO 3 ) 2 + 2NO + 4H 2 O? A. Cu B. H C. N D. O E. H 2 O 35. What element is oxidized in the chemical reaction NiO 2 + Cd + 2H 2 O Ni(OH) 2 + Cd(OH) 2? A. Ni B. Cd C. O D. H E. This is not a redox reaction. 36. What element is reduced in the chemical reaction Cu + 2H 2 SO 4 CuSO 4 + SO 2 + 2H 2 O? A. Cu B. H C. S D. O E. H 2 O Difficulty: Difficult Raymond Reactions... #44 Difficulty: Difficult Raymond Reactions... #46 Difficulty: Difficult Raymond Reactions... #47 Raymond Reactions... #48 Raymond Reactions... #49 Raymond Reactions... #51

12 37. Predict the products of the single replacement reaction Fe(s) + CuSO 4 (aq)? A. Cu(s) + FeSO 4 (aq) B. Fe(s) + Cu(s) + SO 4 (aq) C. CuS(s) + Fe 2 SO 4 (aq) D. FeCuSO 4 (aq) E. FeO(s) + CuSO 3 (aq) 38. Which of these chemical equations describes a precipitation reaction? A. 2H2 (g) + O 2 (g) 2H 2 O(l) Raymond Reactions... #52 B. CaBr2 (aq) + H 2 SO 4 (aq) CaSO 4 (s) + 2HBr(g) C. 2KNO3 (s) 2KNO 2 (s) + O 2 (g) D. 2KBr(aq) + Cl2 (g) 2KCl(aq) + Br 2 (l) E. 2Al(s) + 3H2 SO 4 (aq) Al 2 (SO 4 ) 3 (aq) + 3H 2 (g) 39. Which of these chemical equations describes an acid-base neutralization reaction? A. 2Al(s) + 3H2 SO 4 (aq) Al 2 (SO 4 ) 3 (aq) + 3H 2 (g) Raymond Reactions... #56 B. SO2 (g) + H 2 O(l) H 2 SO 3 (g) C. LiOH(aq) + HNO3 (aq) LiNO 3 (aq) + H 2 O(l) D. 2KBr(aq) + Cl2 (g) 2KCl(aq) + Br 2 (l) E. CaBr2 (aq) + H 2 SO 4 (aq) CaSO 4 (s) + 2HBr(g) 40. Which of these chemical equations describes a combustion reaction? A. 2C2 H 6 (g) + 7O 2 (g) 4CO 2 (g) + 6H 2 O(l) B. LiOH(aq) + HNO3 (aq) LiNO 3 (aq) + H 2 O(l) Raymond Reactions... #57 C. N2 (g) + 3H 2 (g) 2NH 3 (g) D. 2Na(s) + 2H2 O(l) 2NaOH(aq) + H 2 (g) E. 2Al(s) + 3H2 SO 4 (aq) Al 2 (SO 4 ) 3 (aq) + 3H 2 (g) 41. What are three characteristics of a base? Raymond Reactions... #59 a. A base has a bitter taste. b. A base feels slippery. c. A base changes red litmus paper to blue. 42. What are three characteristics of an acid? Raymond Reactions... #100 a. An acid has a sour taste. b. An acid changes blue litmus paper to red. c. An acid reacts with certain metals to produce hydrogen gas. 43. Give an example of a diprotic acid. Raymond Reactions... #101 H 2 CO 3 Raymond Reactions... #103

13 44. Write the net ionic equation for the following reaction. Aqueous iron(iii) sulfate is added to aqueous sodium sulfide to produce solid iron(iii) sulfide and aqueous sodium sulfate. 2Fe 3+ (aq) + 3S 2- (aq) Fe 2 S 3 (s) Raymond Reactions... #105

14 Category # of Questions Difficulty: Difficult Raymond Reactions Chapter 4 Part 1 Practice Summary

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