天气预报 > 其他 > 硫在氧气中燃烧的现象是
硫在氧气中燃烧的现象是
更新时间: 2020-08-19 00:00:00  

硫在氧气中燃烧时,会剧烈燃烧,发出蓝紫色火焰,在空气中燃烧发出微弱的淡蓝色火焰,并生成有刺激性气味气体,该气体为二氧化硫。

实验开始前应先在集气瓶底部装少量的水,用来吸收生成的二氧化硫,防止污染空气。

该反应由两种物质反应生成一种物质,属于化合反应。

关键词: 氧气 燃烧 象是

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