Ответ:
1)CH4+O2=CO2+2H2O
2)5O2+4P=2P2O5
3)2Fe+O2=2FeO
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Ответ:
1)CH4+O2=CO2+2H2O
2)5O2+4P=2P2O5
3)2Fe+O2=2FeO