Which one of the following processes represents an oxidation? MnO2(s) MnO4-(aq) 2H+(aq) + CO32-(aq) + H2O(l) + CO2(g) Ba2+(aq) + CrO42-(aq) → BaCrO4(s) Fe3+(aq) → Fe2+(aq) 2CrO42-(aq) + 2 H+(aq) → Cr2O72-(aq) + H2O(l)

General Chemistry - Standalone book (MindTap Course List)
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Chapter19: Electrochemistry
Section: Chapter Questions
Problem 19.134QP: Order the following oxidizing agents by increasing strength under standard-state conditions:...
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Which one of the following processes represents an oxidation?
MnO2(s)
MnO4-(aq)
2H+(aq) + CO32-(aq) + H2O(l) + CO2(g)
Ba2+(aq) + CrO42-(aq) → BaCrO4(s)
Fe3+(aq) → Fe2+(aq)
2CrO42-(aq) + 2 H+(aq) → Cr2O72-(aq) + H2O(l)
Transcribed Image Text:Which one of the following processes represents an oxidation? MnO2(s) MnO4-(aq) 2H+(aq) + CO32-(aq) + H2O(l) + CO2(g) Ba2+(aq) + CrO42-(aq) → BaCrO4(s) Fe3+(aq) → Fe2+(aq) 2CrO42-(aq) + 2 H+(aq) → Cr2O72-(aq) + H2O(l)
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