Which of the following unbalanced half-reactions is correctly labeled as an oxidation or reduction?
(a) NO3- (aq) -> NO(g); reduction
(b) Zn(s) -> Zn2+(aq); reduction
(c) ClO3-(aq) -> Cl2(g); oxidation
(d) Br-(aq) -> Br2(l); reduction
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Master Balancing Redox Reactions: Acidic Solutions with a bite sized video explanation from Jules Bruno