Bonjour pouvez vous m’aider s’il vous plaît.
Équilibre d’équations chimiques:
1- NH3 + O2 —> NO + H2O
2- CO + Fe3O4 —> O2 + Fe
3- Cu2S + Cu2O —> Cu + SO2
4- CH4 + H2O —> CO2 + H2
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