(a) Balance the following half-reactions by the ion-electronhalf-reaction method:
(i) (acid solution) NO3 – (aq) → N2O (g)
(ii) (acid solution) FeO4 2– (aq) → Fe3+ (aq)
(iii) (base solution) Fe2O3 (s) → Fe(OH)2 (s)
(iv) (base solution) Cu2O (s) → Cu(OH)2 (s)
(b) Which of the above equations are oxidationhalf-reactions?
(c) Give the formulas of the reactants that become oxidized inthe course of the reaction.
