Balance the following skeleton equations. The reactions occur in acidic or basic aqueous solution, as indicated. a.
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a. MnO4 + H2S → Mn2+ + S8 (acidic)
b. Zn + NO3 → Zn2+ + N2O (acidic)
c. MnO42 → MnO4 + MnO2 (basic)
d. Br2 → Br + BrO3 (basic)
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