Solution to Q7

Click to see a closer view of the zinc electrode.

Click to see the anions coming from the salt bridge into the Zn/Zn²⁺ half cell.

Oxidation occurs at the anode (-). The oxidation reaction can be written as Cu²⁺_(aq) + 2e => Cu_(s)
The copper electrode is the anode.

Reduction occurs at the cathode (+). The reduction reaction can be written as
Zn_(s) => Zn²⁺ + 2e + 2e