1) 4P + 5O₂ —› 2P₂O₅.
2) P₂O₅ + 3H₂O —› 2H₃PO₄.
3) 2H₃PO₄ + 3Ca(OH)₂ —› Ca₃(PO₄)₂ + 6H₂O.
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Answers & Comments
1) 4P + 5O₂ —› 2P₂O₅.
2) P₂O₅ + 3H₂O —› 2H₃PO₄.
3) 2H₃PO₄ + 3Ca(OH)₂ —› Ca₃(PO₄)₂ + 6H₂O.