5. Classification & Balancing of Chemical Reactions

Balance the following redox reaction in an acidic solution.

Cl₂ (g) + S₂O₃^2- (aq) → Cl^- (aq) + SO₄^2- (aq)

What is the coefficient of Fe³⁺ when the following reaction is balanced?

Bi³⁺ (aq) + Fe³⁺ (aq) + H₂O (l) → BiO₃^- (aq) + Fe²⁺ (aq) + H⁺ (aq)