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Prentice Hall, Inc.
2MnO2(s) + H2O(l) + BrO31-(aq)
2H1+(aq) +
2MnO41-(aq) + Br1-(aq)
Balancing Redox Reactions: The
Half-Reaction Method
BrO31-(aq) +
6H1+(aq) + 6e-
3H2O(l) + Br1-(aq)
2MnO2(s) + 4H2O(l)
6e- + 8H1+(aq) +
2MnO41-(aq)
•Add the two
balanced half-reactions together and cancel species that appear on both sides of the equation.