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如何检验一瓶气体是氧气
更新时间: 2020-09-16 00:00:00  

氧气是一种助燃性气体,能使带火星的木条复燃,其他气体不能。

因为氧气具有助燃性,能够支持燃烧,可以使带火星的木条复燃.可用一根带火星的木条插入集气瓶中,发现木条复燃,就证明是氧气。

关键词: 如何 检验 气体 氧气

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