Copyright © 2008 Pearson
Prentice Hall, Inc.
Balancing Redox Reactions: The
Half-Reaction Method
BrO31-(aq) +
6H1+(aq) + 6e-
3H2O(l) + Br1-(aq)
MnO2(s) + 2H2O(l)
3e- + 4H1+(aq) +
MnO41-(aq)
•Balance each
half-reaction for charge by adding electrons to the side with greater positive charge.