Humboldt State University ® Department of Chemistry

Richard A. Paselk

	General Chemistry	Fall 2008
Exercise: Redox Balancing	© R. Paselk 2008
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REDOX EQUATION BALANCING PRACTICE PROBLEMS

Balance the reactions below in aqueous acidic solutions:

1. MnO₄^- + Fe²⁺ Fe³⁺ + Mn²⁺
   
2. H₂O₂ + MnO_4^- Mn²⁺ + O_2(g)
   
3. I ^- + H₂O₂ I₂
   
4. Cr₂O_7^2- + I ^- Cr³⁺ + IO_3^-
   
5. S₂O_3^2- + I₂ S₄O_6^2- + I ^_-
   
6. CuS_(s) + NO₃^- Cu^₂₊ + S_(s) + NO_(g)
   
7. MnO₄^2- MnO_2(s) + MnO₄^-
   
8. Pb_(s) + PbO_2(s) + SO₄^2- PbSO_4(s)

Answers 1-8

In addition to these exercises you should familiarize yourself with the text materials.

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© R A Paselk

Last modified 27 October 2008