1. BaO + H₂ → Ba + H₂O 2. CaO + CO₂ → CaCO₃ 3. Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag 4. 2Fe(OH)₃ → Fe₂O₃ + 3H₂O 5. 2K + 2H₂O → 2KOH + H₂ 6. Mg + 2HCl → MgCl₂ + H₂ 7. FeO + H₂ → Fe + H₂O 8. 4Al + 3O₂ → 2Al₂O₃ 9. KOH + HCl → KCl + H₂O 10. AgNO₃ + NaBr → AgBr + NaNO₃ 11. Ca(OH)₂ + H₂SO₄ → CaSO₄ + 2H₂O 12. BaO + 2HBr → BaBr₂ + H₂O 13. HNO₃ + LiOH → LiNO₃ + H₂O