常用实验室制取氧气的方法有a.加热氯酸钾和二氧化锰粉末b.加热高锰酸钾固体c.用二氧化锰粉末作催化剂使过氧化氢h202溶液分解产生 Template




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tomski常用实验室制取氧气的方法有a.加热氯酸钾和二氧化锰粉末b.加热高锰酸钾固体c.用二氧化锰粉末作催化剂使过氧化氢h202溶液分解产生 coloring