Worksheet for balancing redox reactions using the half-reaction method, including identification of oxidized and reduced reactants.

a. Cu²⁺ + 2I⁻ → Cu + I₃⁻ (oxidized: I⁻, reduced: Cu²⁺)
b. MnO₄⁻ + 5Ag + 8H⁺ → Mn²⁺ + 5Ag⁺ + 4H₂O (oxidized: Ag, reduced: MnO₄⁻)
c. Hg + 2NO₃⁻ + 4Cl⁻ + 4H⁺ → HgCl₄²⁻ + 2NO₂ + 2H₂O (oxidized: Hg, reduced: NO₃⁻)
d. AsH₃ + 4Zn²⁺ + 4H₂O → H₃AsO₄ + 4Zn + 8H⁺ (oxidized: AsH₃, reduced: Zn²⁺)
e. 3CN⁻ + 2MnO₄⁻ + H₂O → 3CNO⁻ + 2MnO₂ + 2OH⁻ (oxidized: CN⁻, reduced: MnO₄⁻)
f. H₂O₂ + 2ClO₂ → 2ClO₂⁻ + O₂ + 2H⁺ (oxidized: H₂O₂, reduced: ClO₂)
g. 2ClO⁻ + 2CrO₂⁻ + 2OH⁻ → 2CrO₄²⁻ + Cl₂ + H₂O (oxidized: CrO₂⁻, reduced: ClO⁻)