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2. A half-cell containing Ca and a solution of Ca²+ was combined with a half-cell containing Cu and a solution of Cu²+ to make a voltaic cell. Calcium is more easily oxidised than Copper. a) Which half-cell would form the cathode? b) Write the half-equations for the reactions in this cell, stating which is oxidation and which is reduction. c) Write the overall cell reaction.

2. A half-cell containing Ca and a solution of Ca²+ was combined with a half-cell containing Cu and a solution of Cu²+ to make a voltaic cell. Calcium is more easily oxidised than Copper. a) Which half-cell would form the cathode? b) Write the half-equations for the reactions in this cell, stating which is oxidation and which is reduction. c) Write the overall cell reaction.

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter19: Electrochemistry
Section: Chapter Questions
Problem 19.48QP: A mercury battery, used for hearing aids and electric watches, delivers a constant voltage (1.35 V)...
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2. A half-cell containing Ca and a solution of Ca²+ was combined with a half-cell containing Cu and a solution of Cu²+ to make a voltaic cell. Calcium is more easily oxidised than Copper. a) Which half-cell would form the cathode? b) Write the half-equations for the reactions in this cell, stating which is oxidation and which is reduction. c) Write the overall cell reaction.
Transcribed Image Text:2. A half-cell containing Ca and a solution of Ca²+ was combined with a half-cell containing Cu and a solution of Cu²+ to make a voltaic cell. Calcium is more easily oxidised than Copper. a) Which half-cell would form the cathode? b) Write the half-equations for the reactions in this cell, stating which is oxidation and which is reduction. c) Write the overall cell reaction.
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