7 4. In each of the following reactions, assign oxidation states to each of the atoms to identify the substance that is oxidized and the substance that is reduced. a. Cr2O3 + 2Al → Al2O3 + 2Cr b. 3H2 + Fe2O3 → 2Fe + 3H2O
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a. \( \text{Cr}_2\text{O}_3 + 2\text{Al} \rightarrow \text{Al}_2\text{O}_3 + 2\text{Cr} \) b. \( 3\text{H}_2 + \text{Fe}_2\text{O}_3 \rightarrow 2\text{Fe} + 3\text{H}_2\text{O} \) Show more…
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