Question

State evidence from the balanced equation for the cell with iron and copper electrodes that indicates the reaction in the cell is an oxidation-reduction reaction.

Answer 1

The reactions in the cells are both an oxidation-reduction

In the first reaction below

The Fe is oxidized to Fe²⁺, hence it is undergoing oxidation.

The Cu²⁺ is reduced to Cu, thus is undergoing reduction.

In the second reaction

The Zn is oxidized to Zn²⁺, therefore it is undergoing oxidation half .oxidation.