来自陈玲莉的问题
在化学实验中,收集气体时,什么时候短进长出?如题,将详细点
在化学实验中,收集气体时,什么时候短进长出?
如题,将详细点
1回答
2020-02-16 17:26
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苏建尧
气体的密度大于空气的即收集的气体式量大于29时
因为密度大于空气时气体进入容器沉入底部
就像水和油油在瓶中倒入水此时水会沉入油底
够清楚不?
2020-02-16 17:29:55
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