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3Mg(NO₃)₂ + 2H₃PO₄ = Mg₃(PO₄)₂ + 6HNO₃
3Mg²⁺ + 6NO₃⁻ + 6H⁺ + 2PO₄³⁻ = Mg₃(PO₄)₂ + 6H⁺ + 6NO₃⁻
3Mg²⁺ + 2PO₄³⁻=Mg₂(PO₄)₂
II PROBÓWKA
Ca(NO₃)₂ + H₂S = CaS + 2HNO₃
Ca²⁺ + 2NO₃⁻ + 2H⁺ + S²⁻ = CaS + 2H⁺ + 2NO₃⁻
Ca²⁺ + S²⁻ = CaS
II PROBÓWKA
BaCl₂ + H₂SO₄ = BaSO₄ + 2HCl
Ba²⁺ + 2Cl⁻ + 2H⁺ + SO₄²⁻ = BaSO₄ + 2H⁺ + 2Cl⁻
Ba²⁺ + SO₄²⁻ = BaSO₄