某同学为探究可燃物燃烧的条件,他查阅资料得知:白磷着火点为40 ℃,红磷着火点为240 ℃,它们在空气中燃烧都会生成刺激�吸道的白烟——五氧化 Template




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tomski某同学为探究可燃物燃烧的条件,他查阅资料得知:白磷着火点为40 ℃,红磷着火点为240 ℃,它们在空气中燃烧都会生成刺激�吸道的白烟——五氧化 coloring