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镁条燃烧现象

更新时间: 2021-05-28 17:10:42     

1、现象:镁条剧烈燃烧,发出耀眼的白光,放热燃烧后有白色粉末生成。

2、镁与氯化铵的反应,究其本质,还是镁与酸的反应。氯化铵溶液中铵根离子水解,溶液显酸性。当加入镁粉之后,镁与溶液中的氢离子反应,放出氢气,同时放出大量的热。

关键词: 燃烧 现象

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