Автор - alisakotova573

Памагите
Ca3(PO4)2-->H3PO4-->H4P2O7-->HPO3

Ответ

Автор - фтвфкещт20

Ответ:

Ca3(PO4)2->H3PO4->H4P2O7->HPO3

1) 3 CaO+2 H3PO4 -> Ca3(PO4)2+3 H2O

2) 2 H3PO4 -> H4P2O7+H2O

3)H4P2O7 (t)-> 2 HPO3+H2O

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