5) CO₂ + Mg → ... P₄O₁₀ + H₂SO₄ → ... SO₃ + C → ... NO₂ + O₂ + H₂O → ... HCI + P₂O₅ → ... Na₂O + O₂ → ... H₂O + C → ... CO₂ + NaOH → ... SrO + P₂O₅ → ... Cu₂O + O₂ → ... H₂ + CO₂ → ... Al₂O₃ + C → ... CO₂ + Na₂O → ... Na₂O + H₂O → ...

Решение:

5)

CO₂ + 2Mg → 2MgO + C

P₄O₁₀ + 6H₂SO₄ → 4H₃PO₄ + 6SO₃

SO₃ + 2C → S + 2CO

4NO₂ + O₂ + 2H₂O → 4HNO₃

6HCl + P₂O₅ → 2H₃PO₄ + 5HCl

2Na₂O + O₂ → 2Na₂O₂

H₂O + C → CO + H₂

CO₂ + 2NaOH → Na₂CO₃ + H₂O

3SrO + P₂O₅ → Sr₃(PO₄)₂

2Cu₂O + O₂ → 2Cu₂O₂

H₂ + CO₂ → HCOOH

Al₂O₃ + 3C → 2Al + 3CO

CO₂ + Na₂O → Na₂CO₃

Na₂O + H₂O → 2NaOH