Construct full redox equations from the following pairs of half-equations.

a. The reaction of iodide ions with hydrogen peroxide:

I^– → 1/2 I₂ + e^–

H₂O₂ + 2H⁺ + 2e^– → 2H2O

b. The reaction of chloride ions with acidified manganese(IV) oxide:

Cl^– 1/2 Cl₂ → + e^–

MnO₂ + 4H⁺ + 2e^– → Mn²⁺ + 2H₂O

c. The reaction of acidified MnO₄ ^– ions with Fe²⁺ ions:

Fe²⁺ Fe³⁺ + e^–

MnO₄^– + 8H⁺ + 5e^–  → Mn²⁺ + 4H₂O