Sample Problem 4.8
Balancing Redox Equations by the Oxidation Number Method
PROBLEM:
Use the oxidation number method to balance the following equations:
SOLUTION:
O.N. of Cu increases (it loses 2e-); it is oxidized and is the reducing agent.
O.N. of N decreases (it gains 1e-); it is reduced and is the oxidizing agent.
loses 2e-
gains 1e-
x2 to balance e-
balance unchanged polyatomic ions
balance other ions
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