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Back to 17.1 Review of Redox Chemistry

17.1 Exercise 1

Avg difficulty 2.5

Identify each half-reaction below as either oxidation or reduction.

(a) Fe3++3e−⟶Fe\text{Fe}^{3+} + \text{3e}^{−} \rightarrow \text{Fe}

(b) Cr⟶Cr3++3e−\text{Cr} \rightarrow \text{Cr}^{3+} + \text{3e}^{−}

(c) MnO42−⟶MnO4−+e−\text{MnO}_{4} ^{2−} \rightarrow \text{MnO}_{4} ^{-} + \text{e}^{−}

(d) Li++e−⟶Li\text{Li}^{+} + \text{e}^{−} \rightarrow \text{Li}

OpenStax Chemistry 2e, 17.1 Review of Redox Chemistry, exercise 1

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Adapted from General Chemistry © 2019 Rice University. Licensed under CC BY 4.0. Sources: Chemistry 2e, Chemistry: Atoms First 2e. Imported at revision 32c7196.