来自洪悦的问题
【木炭,镁条,石蜡,硫,红磷,铁在氧气中的共同特点】
木炭,镁条,石蜡,硫,红磷,铁在氧气中的共同特点
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2020-03-26 23:13
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毕训银
都是化学反应,有生成物.
都与氧接触
都需要点燃这个条件
反应物都是两个物质
2020-03-26 23:14:27
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