如图是小兴在实验室用高锰酸钾制取氧气请结合图示回答下列问题1用理化知识解释生成的气体逸出的原因 2氧气聚集在上部的原因是 3用 Template




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tomski如图是小兴在实验室用高锰酸钾制取氧气请结合图示回答下列问题1用理化知识解释生成的气体逸出的原因 2氧气聚集在上部的原因是 3用 coloring