Consider the following half-reactions:

(a) Choosing from among the reactants in these half-reactions, identify the strongest and weakest oxidizing agents.
(b) Which of the oxidizing agents listed is (are) capable of oxidizing Br⁻(aq) to BrO₃⁻(aq) (in acid solution)?
(c) Write a balanced chemical equation for the reaction of Cr₂O₇²⁻(aq) with SO₂(g) in acid solution. Is this reaction product-favored or reactant-favored at equilibrium?
(d) Write a balanced chemical equation for the reaction of Cr₂O₇²⁻(aq) with Mn²⁺(aq). Is this reaction product-favored or reactant-favored at equilibrium?

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Half-Reaction MnO4 (aq) + 8 H+ (aq) + 5 e → Mn²+ (aq) + 4H₂O(l) BrO3(aq) + 6 H+ (aq) + 6 e → Br (aq) + 3 H₂O(l) Cr₂O72 (aq) + 14 H+ (aq) + 6 e¯→ 2 Cr³+ (aq) + 7 H₂O(l) NO3(aq) + 4 H+ (aq) + 3 e¯ → NO(g) + 2 H₂O(l) SO4² (aq) + 4 H+ (aq) + 2e → SO₂(g) + 2 H₂O(l) E°(V) +1.51 +1.47 +1.33 +0.96 +0.20