Given the following half-reactions in acidic solution:

CHEMISTRY · Subjective · A Level · Chemistry · Oxidation, reduction and redox reactions · Oxidation, reduction and redox reactions

Problem

Given the following half-reactions in acidic solution: (i)

Sn^{2+} \to Sn^{4+} + 2e^{-}

(ii)

2e^{-} + 4H^{+} + O_{2} \to 2H_{2}O

Write the balanced overall chemical equation for the redox reaction that occurs when these two half-reactions are combined.