初中化学方程式大全
人气:174 ℃ 时间:2020-02-03 17:58:00
解答
一. 物质与氧气的反应:(1)单质与氧气的反应:1.镁在空气中燃烧:2Mg + O2 点燃 2MgO2.铁在氧气中燃烧:3Fe + 2O2 点燃 Fe3O43.铜在空气中受热:2Cu + O2 加热 2CuO4.铝在空气中燃烧:4Al + 3O2 点燃 2Al2O35.氢...
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