Copyright © 2008 Pearson
Prentice Hall, Inc.
Balancing Redox Reactions: The
Oxidation-Number Method
Balance the following net ionic equation in acidic solution:
Cr3+(aq) + IO31-(aq)
I1-(aq) +
Cr2O72-(aq)
•Balance the equation for
all atoms other than H and O.
2Cr3+(aq) + IO31-(aq)
I1-(aq) +
Cr2O72-(aq)