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Ca(OH)₂ + SO₂ = CaSO₃ + H₂O
Ca(OH)₂ + SO₃ = CaSO4 + H₂O
CaSO₃ + 1/2O₂ = CaSO4
Ca(OH)₂ + CO₂ = CaCO₃ + H₂O
Ca(OH)₂ + 2HCl = CaCl₂ + 2H₂O
Ca(OH)₂ + 2HF = CaF2 + 2H₂O

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