Four elementary steps for a redox process occurring in acidic solution are listed in random order:
(i) MnO₄⁻(aq) + 8 H⁺(aq) + 5 e⁻ ⇌ Mn²⁺(aq) + 4 H₂O(l)
(ii) 2 Fe²⁺(aq) ⇌ 2 Fe³⁺(aq) + 2 e⁻
(iii) 2 Fe³⁺(aq) + 2 e⁻ ⇌ 2 Fe²⁺(aq)
(iv) 5 Fe²⁺(aq) → 5 Fe³⁺(aq) + 5 e⁻
After arranging the necessary steps in a sequence that conserves mass and charge and canceling any species that appear on both sides, write the overall balanced chemical equation for the reaction in acidic solution.