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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. 氢气中空气中燃烧：2H2 + O2 点燃 2H...全文
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qylizhi：已移动到理科版块(2021-07-20 16:12)
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qiqigoddess： 真的好多，我们是每节课默写两个(2015-01-02 17:19)
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qiqigoddess：嘿嘿，加油背吧(2015-01-02 17:17)
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