Balance each redox equation using the oxidation-number-change method.
a. KCIO3(s) → KCl(s) + O2(g)

b. HNO,(aq) + HI(aq) → NO(g) + 1,(s) + H2O11

c. Br_(1) + SO, (g) → Braq) + SO2-laq) (acidic solution]

d. CIO, (aq) + IH(aq) → Cl-(aq) + 1,(aq) [acidic solution]