Balancing Redox Reactions (Simplified)

5. Classification & Balancing of Chemical Reactions / Balancing Redox Reactions (Simplified) / Problem 2

When the following redox reaction is balanced, what is the coefficient for aluminum?
Al_(s) + Sn⁴⁺_(aq) → Al³⁺_(aq) + Sn²⁺_(aq)

When the following redox reaction is balanced, what is the coefficient for aluminum?Al(s) + Sn4+(aq) → Al3+(aq) + Sn2+(aq)