某同学用如图所示装置探究可燃物燃烧的条件得到以下实验事实�不通空气时冷水中的白磷不燃烧�通空气时冷水中的白磷不燃烧�不通空气时 Template




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tomski某同学用如图所示装置探究可燃物燃烧的条件得到以下实验事实�不通空气时冷水中的白磷不燃烧�通空气时冷水中的白磷不燃烧�不通空气时 coloring