Question

Catherine wants to check the purity of copper present in the container by performing electrolysis. Write the chemical equation at the cathode and anode.​

Answer 1

Answer:

The half-reaction on the anode, where oxidation occurs, is Zn(s) = Zn2+ (aq) + (2e-). The zinc loses two electrons to form Zn2+. The half-reaction on the cathode where reduction occurs is Cu2+ (aq) + 2e- = Cu(s). ... The entire reaction can be written by combining both half-reactions: Zn(s) + Cu2+ (aq) = Zn2+ (aq) + Cu(s).