Ответ:
4P+5O2=2P2O5
P2O5+3H2O=2H3PO4
2H3PO4+3Zn=Zn3(PO4)2+3H2
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Ответ:
4P+5O2=2P2O5
P2O5+3H2O=2H3PO4
2H3PO4+3Zn=Zn3(PO4)2+3H2