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氨气和氯化氢反应是元素化合物中一个重要的反应,在人教版必修1的课本上只是用图示简单地描述了一下该反应的现象:两根玻璃棒分别蘸取浓盐酸和浓氨水,然后靠近不接触,在两根玻璃棒的中间区域就能看到有白烟产生.我们也曾按这样的操作去做这个实验,但是浓氨水和浓盐酸的挥发性很强,当打开瓶塞,用玻璃棒去蘸取试剂时,刺激性的气味扑鼻而来,所以这样的实验不宜在敞开环境中做,对人身体伤害太大.所以在平时的教学中,我们一般都播放实验视频,但是毕竟不是亲
Ammonia and hydrogen chloride reaction is an important element of the compound reaction in the PEP 1 compulsory textbook only a simple description of the phenomenon of the reaction: two glass rods were dipped in concentrated hydrochloric acid and concentrated ammonia, respectively, And then close to the non-contact, in the middle of the two glass rods can see the white smoke produced.We have also done this experiment according to the operation, but concentrated ammonia and concentrated hydrochloric acid volatile strong when opening the stopper , With a glass rod to dipped the reagent, the irritating smell nostrils, so this experiment should not be done in an open environment, the body hurt too much, so in normal teaching, we generally play the experimental video, But after all, not pro