Both mercury and silver button batteries (such as those used in many watches) operate through a redox reaction involving zinc. The balanced equation for the overall reaction in a mercury button battery is given below. (Spectator ions have been omitted.) Zn (s) + HgO(s) –→ ZnO(s) + Hg(1) Reduction half-reactions are as follows: ZnO(s) + H,0(1) + 2e - Zn(s) + 20H¯(aq);E°=-1.25V Hgo(s) + H,0(1) +2e¯= Hg(1) + 20H¯(aq);E° = +0.0997V

Both mercury and silver button batteries (such as those used in many watches) operate through a redox reaction involving zinc. The balanced equation for the overall reaction in a mercury button battery is given below. (Spectator ions have been omitted.) Zn (s) + HgO(s) –→ ZnO(s) + Hg(1) Reduction half-reactions are as follows: ZnO(s) + H,0(1) + 2e - Zn(s) + 20H¯(aq);E°=-1.25V Hgo(s) + H,0(1) +2e¯= Hg(1) + 20H¯(aq);E° = +0.0997V

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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