+ a. Identify each of the following half-reactions as either an oxidation half-reaction or a reduction half-reaction. Half-reaction Cl2(g) + 2e2C1 (aq) Ni(s) Ni2+ (aq) + 2e Identification b. Write a balanced equation for the overall redox reaction. (Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a box is not needed, leave it blank.)