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Standardized Test Preparation. Chapter 19. Preview. Multiple Choice Short Answer Extended Response. Multiple Choice. 1. In the following reaction, which species is reduced? A. K B. Br 2 C. All of the above D. None of the above. Standardized Test Preparation. Chapter 19.

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  1. Standardized Test Preparation Chapter 19 Preview Multiple Choice Short Answer Extended Response

  2. Multiple Choice 1. In the following reaction, which species is reduced? A. K B. Br2 C. All of the above D. None of the above Standardized Test Preparation Chapter 19

  3. 1. In the following reaction, which species is reduced? A. K B. Br2 C. All of the above D. None of the above Standardized Test Preparation Chapter 19 Multiple Choice

  4. 2. The oxidation number of the sulfur atom in the A. +2. B. −2. C. +6. D. +4. Standardized Test Preparation Chapter 19 Multiple Choice

  5. 2. The oxidation number of the sulfur atom in the A.+2. B. −2. C. +6. D. +4. Standardized Test Preparation Chapter 19 Multiple Choice

  6. 3. A half-reaction A. involves a change in the oxidation state of an element. B. always contains H2O molecules. C.always contains H+ ions. D. All of the above Standardized Test Preparation Chapter 19 Multiple Choice

  7. 3. A half-reaction A. involves a change in the oxidation state of an element. B. always contains H2O molecules. C. always contains H+ ions. D. All of the above Standardized Test Preparation Chapter 19 Multiple Choice

  8. 4. In the following reaction, which is the oxidizing agent? A. AgNO2 B. Cl2 C. KOH D. KCl Standardized Test Preparation Chapter 19 Multiple Choice

  9. 4. In the following reaction, which is the oxidizing agent? A. AgNO2 B. Cl2 C. KOH D. KCl Standardized Test Preparation Chapter 19 Multiple Choice

  10. 5. What are the oxidation states (in increasing order) of the element that undergoes disproportionation in the following reaction: A. −1, 0, +2 B. −1, 0, +1 C. −2, −1, 0 D. None of the above Standardized Test Preparation Chapter 19 Multiple Choice

  11. 5. What are the oxidation states (in increasing order) of the element that undergoes disproportionation in the following reaction: A. −1, 0, +2 B. −1, 0, +1 C. −2, −1, 0 D. None of the above Standardized Test Preparation Chapter 19 Multiple Choice

  12. 6. Which reaction is a redox reaction? A. B. C. D. Standardized Test Preparation Chapter 19 Multiple Choice

  13. Standardized Test Preparation Chapter 19 Multiple Choice 6. Which reaction is a redox reaction? A. B. C. D.

  14. 7. Arrange the following in order of increasing oxidation number of the sulfur atom: A. B. C. D. Standardized Test Preparation Chapter 19 Multiple Choice

  15. Standardized Test Preparation Chapter 19 Multiple Choice 7. Arrange the following in order of increasing oxidation number of the sulfur atom: A. B. C. D.

  16. 8. Which answer contains the correct information about the following reaction: A. This reaction is a decomposition reaction and not a redox reaction. B. This reaction is a redox reaction in which the lead is reduced and the oxygen is oxidized. C. This reaction is a disproportionation reaction. D. This reaction is a redox reaction in which the nitrogen is reduced and the oxygen is oxidized. Standardized Test Preparation Chapter 19 Multiple Choice

  17. Standardized Test Preparation Chapter 19 Multiple Choice 8. Which answer contains the correct information about the following reaction: A. This reaction is a decomposition reaction and not a redox reaction. B. This reaction is a redox reaction in which the lead is reduced and the oxygen is oxidized. C. This reaction is a disproportionation reaction. D. This reaction is a redox reaction in which the nitrogen is reduced and the oxygen is oxidized.

  18. 9. Determine the oxidation numbers for Cu in the superconductor YBa2Cu3O7.Yttrium (Y) has an oxidation number of +3. (Cu does not have oxidation numbers greater than +3.) Give only integer oxidation numbers. Standardized Test Preparation Chapter 19 Short Answer

  19. 9. Determine the oxidation numbers for Cu in the superconductor YBa2Cu3O7.Yttrium (Y) has an oxidation number of +3. (Cu does not have oxidation numbers greater than +3.) Give only integer oxidation numbers. Answer:The oxidation numbers for Y, Ba, and O are +3, +2, and −2, respectively. Therefore, the sum of the oxidation numbers for the three Cu atoms must be +7. Two Cu atoms must have +2 oxidation states, and one Cu atom must have a +3 oxidation state. Standardized Test Preparation Chapter 19 Short Answer

  20. 10. What is an oxidizing agent? Standardized Test Preparation Chapter 19 Short Answer

  21. 10. What is an oxidizing agent? Answer:An oxidizing agent is a species that causes another species to be oxidized in a redox reaction. An oxidizing agent is therefore reduced in a redox reaction. Standardized Test Preparation Chapter 19 Short Answer

  22. 11. B, F, K, and L are four unknown reducing agents that oxidize to singly charged cations. Using the following information, construct a table showing the relative strengths of the oxidizing and reducing agents. Data: F reduces K+, B+, and L+. B+ oxidizes K and F, but not L. Standardized Test Preparation Chapter 19 Extended Response

  23. 11. B, F, K, and L are four unknown reducing agents that oxidize to singly charged cations. Using the following information, construct a table showing the relative strengths of the oxidizing and reducing agents. Data: F reduces K+, B+, and L+. B+ oxidizes K and F, but not L. Answer: Reducing agents Oxidizing agents F K B L F+ K+ B+ L+ Standardized Test Preparation Chapter 19 Extended Response

  24. 12. Balance the equation for the following reaction in basic solution: Give the balanced equation for each half-reaction and for the overall reaction. Give the oxidizing agent and the reducing agent. Standardized Test Preparation Chapter 19 Extended Response

  25. 12. Balance the equation for the following reaction in basic solution: Give the balanced equation for each half-reaction and for the overall reaction. Give the oxidizing agent and the reducing agent. Answer: Oxidation half-reaction: Reduction half-reaction: Overall reaction: This reaction is a disproportionation reaction; therefore, ClO2 is both the reducing agent and the oxidizing agent. Standardized Test Preparation Chapter 19 Extended Response

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