Label the following as a non-redox or redox reaction. Determine the reducing agent and the oxidizing agent for the identified redox reaction.
I. Mg (s) +Cl₂ (g) → MgCl₂ (s)


II. Cu (s) + 2 Ag⁺ (aq) → Cu²⁺ (aq) + Ag (s)


III. 2 K (s) + F₂ (g) → 2 KF (s)


IV. N₂O₃ (g) + H₂O (l) → HNO₂ (aq)

• A. I. NON-REDOX
  II. REDOX; reducing agent: Ag⁺; oxidizing agent: Cu
  III. NON-REDOX
  IV. NON-REDOX
• B. I. REDOX; reducing agent: Cl₂; oxidizing agent: Mg
  II. REDOX; reducing agent: Cu; oxidizing agent: Ag⁺
  III. REDOX; reducing agent: F₂; oxidizing agent: K
  IV. NON-REDOX
• C. I. REDOX; reducing agent: Cl₂; oxidizing agent: Mg
  II. REDOX; reducing agent: Ag⁺; oxidizing agent: Cu
  III. REDOX; reducing agent: F₂; oxidizing agent: K
  IV. NON-REDOX
• D. I. REDOX; reducing agent: Mg; oxidizing agent: Cl₂
  II. REDOX; reducing agent: Cu; oxidizing agent: Ag⁺
  III. REDOX; reducing agent: K; oxidizing agent: F₂
  IV. NON-REDOX

Answer: (D)