Ответ:
CaO + CO₂ ⟹ CaCO₃
Al₂O₃ + 3SO₃ ⟹ Al₂(SO₄)₃
3Na₂O + P₂O₅ ⟹ 2Na₃PO₄.
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Ответ:
CaO + CO₂ ⟹ CaCO₃
Al₂O₃ + 3SO₃ ⟹ Al₂(SO₄)₃
3Na₂O + P₂O₅ ⟹ 2Na₃PO₄.