CaO + H₂O = Ca(OH)₂
Ca(OH)₂ + CO₂= CaCO₃ + H₂O
K₂O + HCl = 2KCl + H₂O
Li₂O + 2HNO₃ = 2LiNO₃ + H₂O
SO₂ + 2NaOH = Na₂SO₃ + H₂O
SO₃ + 2KOH = K₂SO₄ + H₂O
CaO + H₂O = Ca(OH)₂
Ca(OH)₂ + CO₂= CaCO₃ + H₂O
K₂O + HCl = 2KCl + H₂O
Li₂O + 2HNO₃ = 2LiNO₃ + H₂O
SO₂ + 2NaOH = Na₂SO₃ + H₂O
SO₃ + 2KOH = K₂SO₄ + H₂O