某校化学兴趣小组的同学利用下列装置进行实验 实验目的1用高锰酸钾制取一瓶氧气做细铁丝燃烧的实验 2粗略测定加热2克高锰酸钾所 Template




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tomski某校化学兴趣小组的同学利用下列装置进行实验 实验目的1用高锰酸钾制取一瓶氧气做细铁丝燃烧的实验 2粗略测定加热2克高锰酸钾所 coloring