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What was oxidized and what was reduced in the following reaction? 2Hg2+ + N2H4 2Hg + N2 + 4H, A. Hg2+ was oxidized; N2H4 was reduced B. Hg2+ was reduced; N2H4 was oxidized C. Hg2+ was oxidized; N2H4 was oxidized D. Hg2+ was reduced; N2H4 was reduced

What was oxidized and what was reduced in the following reaction? 2Hg2+ + N2H4 2Hg + N2 + 4H, A. Hg2+ was oxidized; N2H4 was reduced B. Hg2+ was reduced; N2H4 was oxidized C. Hg2+ was oxidized; N2H4 was oxidized D. Hg2+ was reduced; N2H4 was reduced

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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5. What was oxidized and what was reduced in the following reaction? 2Hg2+ + N2H4 2Hg + N2 + 4H, A. Hg2+ was oxidized; N2H4 was reduced B. Hg2+ was reduced; N2H4 was oxidized C. Hg2+ was oxidized; N2H4 was oxidized D. Hg2+ was reduced; N2H4 was reduced 6. Which substance is the reducing agent in the following reaction? + 2H2O@) Cl2(8) + Mn2+ C. MnO2(s) 4H*(aq) + 2Cl(aq) + MnO2(s) (aq) A. H*(aq) B. Cl (aq) D. Cl2(3) 7. Which of the following statements about electrochemical cells is true? A. Oxidation occurs at the anode B. Reduction occurs at the anode C. Only oxidation half-reactions are useful D. An element with a high love for electrons is likely to be easily oxidizec 8. Which of the following statements is FALSE? A. Oxidation occurs at the anode. B. Reduction occurs at the cathode. C. All electrochemical reactions involve the transfer of electrons. D. All voltaic (galvanic) cells involve the use of electricity to initiate nonspontaneous chemical reactions. 9. What is the function of a salt bridge in an operating electrochemical cell? A. allow hydrolysis to occur. B. allow a non-spontaneous reaction to occur. C. permit the migration of ions within the cell. D. transfer electrons from the cathode to the anode.
Transcribed Image Text:5. What was oxidized and what was reduced in the following reaction? 2Hg2+ + N2H4 2Hg + N2 + 4H, A. Hg2+ was oxidized; N2H4 was reduced B. Hg2+ was reduced; N2H4 was oxidized C. Hg2+ was oxidized; N2H4 was oxidized D. Hg2+ was reduced; N2H4 was reduced 6. Which substance is the reducing agent in the following reaction? + 2H2O@) Cl2(8) + Mn2+ C. MnO2(s) 4H*(aq) + 2Cl(aq) + MnO2(s) (aq) A. H*(aq) B. Cl (aq) D. Cl2(3) 7. Which of the following statements about electrochemical cells is true? A. Oxidation occurs at the anode B. Reduction occurs at the anode C. Only oxidation half-reactions are useful D. An element with a high love for electrons is likely to be easily oxidizec 8. Which of the following statements is FALSE? A. Oxidation occurs at the anode. B. Reduction occurs at the cathode. C. All electrochemical reactions involve the transfer of electrons. D. All voltaic (galvanic) cells involve the use of electricity to initiate nonspontaneous chemical reactions. 9. What is the function of a salt bridge in an operating electrochemical cell? A. allow hydrolysis to occur. B. allow a non-spontaneous reaction to occur. C. permit the migration of ions within the cell. D. transfer electrons from the cathode to the anode.
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