化学方程式(配平过的)1.镁在空气中燃烧 2.铁在氧气中燃烧 3.铜在空气中受热4.铝在空气中燃烧:5.氢气中空气中燃烧
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1.2Mg+O2=点燃(上)=2MgO2.3Fe+2O2=点燃(上)=Fe3O43.2Cu+O2=点燃(上)=2CuO4.4Al+3O2=点燃(上)=2Al2O35.2H2+O2=点燃(上)=2H2O6.4P+5O2=点燃(上)=2P2O57.S+O2=点燃(上)=SO28.C+O2=点燃(上)=CO2↑9.2C+O2=点燃(上)=2CO↑...