Finish the reaction equations, indicate the oxidizing agent and the reducing agent: a) Mg + HCj → b) P + O₂ →

Mg + 2HCl = MgCl₂ + H₂: Mg⁰ – 2e⁻ → Mg⁺² (reducing agent), 2H⁺ + 2e⁻ → H₂⁰ (oxidizing agent)
4P + 5O₂ → 2P₂O₅: P⁰ – 5e⁻ → P⁺⁵ (reducing agent), O₂ + 4e⁻ → 2O⁻² (oxidizing agent)



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