来自冯跃的问题
H(HCI)如何除去杂质,用化学方程式表示
H(HCI)如何除去杂质,用化学方程式表示
3回答
2020-04-22 21:24
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胡枫梧
直接通入水中,氯化氢气体极易溶于水,出来的都是氢气!不用什么NaOH!这个是物理现象,没有发生化学反应,因此没有你要的化学方程式!最简单最好用的实际操作的方法!
2020-04-22 21:25:43
冯跃
可是老师要求的是要方程式啊，我就是想知道怎样解这种题的方法，孩子现在刚上初中，是不是只有死记硬背方程式这一种方法呢？
2020-04-22 21:30:03
胡枫梧
这老师出的题目真差劲.......这不是死记硬背的，化学这东西是要灵活变通的，非得要用化学方法那就用HCl+NaOH==NaCl+H2O！！！这个就是把气体通入氢氧化钠溶液当中，氯化氢气体溶于水后变成盐酸和氢氧化钠发生中和反应，但是你想想，既然杂质气体都溶于水变成盐酸了，那还需要氢氧化钠溶液么，氢气（H2）是不溶于水的出来的不都是氢气么，这个老师到底想闹哪样？
2020-04-22 21:31:23
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