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Автор - lili2997

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Ответ

Автор - egpasflvsjk

4P+ 5O2- 2P2O5

P2O5 + 3H2O - 2H3PO4

3H3PO4 +NaOH= Na3PO4 + 3H2O

2Na3PO4 + 3Ca(OH)2= Ca3(PO4)2 + 6NaOH

Объяснение:

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