Copyright © 2008 Pearson
Prentice Hall, Inc.
Balancing Redox Reactions: The
Half-Reaction Method
•Multiply
each half-reaction by a factor to make the electron count the same in both half-reactions.
2
BrO31-(aq) +
6H1+(aq) + 6e-
3H2O(l) + Br1-(aq)
MnO2(s) + 2H2O(l)
3e- + 4H1+(aq) +
MnO41-(aq)