Ответ:
4Р+5О2=2Р2О5
Р2О5+3Н2О(t°)=2H3PO4
2H3PO4+3K2O=2K3PO4+3H2O
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Ответ:
4Р+5О2=2Р2О5
Р2О5+3Н2О(t°)=2H3PO4
2H3PO4+3K2O=2K3PO4+3H2O