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铜和稀硝酸反应现象

更新时间: 2020-07-03 00:00:00     

现象如下:铜片溶解,溶液有无色变成蓝色,有气体产生,遇到空气变红棕色;开始温度低,反应时放热,放出的热量升高温度,使得反应加快。

关键词: 硝酸 反应 现象

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