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Depict the galvanic cell in which the reaction Zn(s) + 2Ag+(aq) → Zn2++ 2Ag(s) takes place. Further show:

1. Which of the electrodes is negatively charged?

2. The carriers of current in the cell.

3. Individual reaction at each electrode.

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The electrochemical cell which will involve the given cell reaction is depicted as Zn(s) | Zn2+(aq) || Ag+(aq) | Ag(s).

1. In this cell, the electrode Zn(s) | Zn2+(aq) will act as negative terminal and Ag | Ag+(aq) electrode will act as positive terminal.

2. The conventional current will ow from silver to zinc electrode in the external circuit.

3. Individual reaction at each electrode :

  • Cathodic reaction : 2Ag+(aq) + 2e → 2Ag(s)
  • Anodic reaction : Zn(s) → Zn2+(aq) + 2e- 

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