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Автор - lovevk1наст

зробіть перетворення: P-P2O5-H3PO4-NA3PO4

Ответ

Автор - ksuuusha
4p+5o2=2p2o5
p2o5+3h2o=2h3po4
h3po4+3naoh=na3po4+3h2o

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