Copyright © 2008 Pearson Prentice Hall, Inc.
Chapter 4/
63
Balancing Redox Reactions:
The Half-Reaction Method
Br
O
3
1-
(
aq
) +
6H
1+
(
aq
)
3H
2
O(
l
)
+
Br
1-
(
aq
)
MnO
2
(
s
) +
2H
2
O(
l
)
4H
1+
(
aq
)
+ MnO
4
1-
(
aq
)
•
Balance each half-reaction for O by adding H
2
O, and
then balance for H by adding H
1+
.