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7. A galvanic cell can become an electrochemical cell if a. the system is heated. b. the salt bridge is reversed. C. an external voltage is applied. d. the wires are reversed. e. the electrodes are placed in opposite half-cells. 8. For the redox reaction in a galvanic cell shown below, which of the following is the correct notation for the cell? Pb(s) + 2FeCl3(aq) → 2FeCl2(aq) + PbCl2(aq) a. Pb(s) | Pb2+ (aq) || Fe³+ (aq) | Fe²+(aq) b. Pb(s) | Pb2+(aq) || Fe 3+ (aq), Fe2+(aq) | Fe(s) c. Pb(s) | Pb²+(aq) || Fe³+ (aq), Fe²+(aq) | Pt(s) d. Fe3+(aq), Fe2+(aq) | Pt(s) || Pb(s) | Pb2+ (aq) e. Fe3+ (aq), Fe2+(aq) || Pb(s) | Pb²+( (aq)

7. A galvanic cell can become an electrochemical cell if a. the system is heated. b. the salt bridge is reversed. C. an external voltage is applied. d. the wires are reversed. e. the electrodes are placed in opposite half-cells. 8. For the redox reaction in a galvanic cell shown below, which of the following is the correct notation for the cell? Pb(s) + 2FeCl3(aq) → 2FeCl2(aq) + PbCl2(aq) a. Pb(s) | Pb2+ (aq) || Fe³+ (aq) | Fe²+(aq) b. Pb(s) | Pb2+(aq) || Fe 3+ (aq), Fe2+(aq) | Fe(s) c. Pb(s) | Pb²+(aq) || Fe³+ (aq), Fe²+(aq) | Pt(s) d. Fe3+(aq), Fe2+(aq) | Pt(s) || Pb(s) | Pb2+ (aq) e. Fe3+ (aq), Fe2+(aq) || Pb(s) | Pb²+( (aq)

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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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7. A galvanic cell can become an electrochemical cell if a. the system is heated. b. the salt bridge is reversed. C. an external voltage is applied. d. the wires are reversed. e. the electrodes are placed in opposite half-cells. 8. For the redox reaction in a galvanic cell shown below, which of the following is the correct notation for the cell? Pb(s) + 2FeCl3(aq) → 2FeCl2(aq) + PbCl2(aq) a. Pb(s) | Pb2+ (aq) || Fe³+ (aq) | Fe²+(aq) b. Pb(s) | Pb2+(aq) || Fe 3+ (aq), Fe2+(aq) | Fe(s) c. Pb(s) | Pb²+(aq) || Fe³+ (aq), Fe²+(aq) | Pt(s) d. Fe3+(aq), Fe2+(aq) | Pt(s) || Pb(s) | Pb2+ (aq) e. Fe3+ (aq), Fe2+(aq) || Pb(s) | Pb²+( (aq)
Transcribed Image Text:7. A galvanic cell can become an electrochemical cell if a. the system is heated. b. the salt bridge is reversed. C. an external voltage is applied. d. the wires are reversed. e. the electrodes are placed in opposite half-cells. 8. For the redox reaction in a galvanic cell shown below, which of the following is the correct notation for the cell? Pb(s) + 2FeCl3(aq) → 2FeCl2(aq) + PbCl2(aq) a. Pb(s) | Pb2+ (aq) || Fe³+ (aq) | Fe²+(aq) b. Pb(s) | Pb2+(aq) || Fe 3+ (aq), Fe2+(aq) | Fe(s) c. Pb(s) | Pb²+(aq) || Fe³+ (aq), Fe²+(aq) | Pt(s) d. Fe3+(aq), Fe2+(aq) | Pt(s) || Pb(s) | Pb2+ (aq) e. Fe3+ (aq), Fe2+(aq) || Pb(s) | Pb²+( (aq)
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