如图所示的一组实验可用于研究燃烧的条件.查阅资料可知白磷的着火点是40℃红磷的着火点是240℃.1此组实验烧杯中的热水除提高温度外主要 Template




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tomski如图所示的一组实验可用于研究燃烧的条件.查阅资料可知白磷的着火点是40℃红磷的着火点是240℃.1此组实验烧杯中的热水除提高温度外主要 coloring