Identify the oxidation number of each element in the following oxidation-reduction equations, and balance the equations by the half-reaction method: a) MnO4- + ClO2- à MnO2 + ClO4- b) Cr3+ (aq) + Zn (s) à Cr (s) + Zn2+ (aq)

World of Chemistry, 3rd edition
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Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Chapter8: Reactions In Aqueous Solutions
Section: Chapter Questions
Problem 30A
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Identify the oxidation number of each element in the following oxidation-reduction equations, and balance the equations by the half-reaction method:

  1. a) MnO4- + ClO2- à MnO2 + ClO4-
  2. b) Cr3+ (aq) + Zn (s) à Cr (s) + Zn2+ (aq)
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