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如何鉴别氢气甲烷一氧化碳
更新时间: 2020-09-16 00:00:00  

将三种气体分别燃烧,罩上干燥烧杯并接入澄清石灰水。若烧杯内壁无水蒸气且澄清石灰水变混浊,则气体为一氧化碳;若有水蒸气且燃烧产物通入石灰水,石灰水变浑浊的为甲烷;若烧杯内壁有水蒸气到石灰水无明显变化的为氢气。

关键词: 如何 鉴别 氢气 甲烷 一氧化碳

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