1. Ba + H₂CO₃ = BaCO₃ + H₂
2 .BaCO₃ + H₂SO₄= BaSO₄↓ + CO₂↑ +H₂O
3. 2BaSO₄ +t = 2BaO + 2SO₂↑ +O₂↑
BaO + H₂O = Ba(OH)₂
4.Ba(OH)₂ + MgCI₂= BaCI₂ + Mg(OH)₂↓
5. Mg(OH)₂ + CH₃COOH= Mg(CH₃COO)₂ + H₂O
6. Mg(CH₃COO)₂ + t = MgO + CO₂↑ + CH₃COOH
7. 3Pb(OH)₂ + 2H₃PO₄ = Pb₃(PO₄)₂↓ + 6H₂O
8. Pb₃(PO₄)₂ +t = 3PbO + P₂O₅
9. PbO + C = Pb + CO₂
10. Pb(OH)₂ + CH₃COOH =Pb(CH₃COO)₂ + H₂O