用氯气或液氯消毒饮用水时,会和水中的有机物发生反应,生成对人体有毒的有机物.因此,世界环保联盟将全

2025-03-16 09:14:32
推荐回答(1个)
回答(1):

(1)氯酸钠和浓盐酸反应的化学方程式为:2NaClO3+4HCl=2ClO2↑+Cl2↑+2H2O+2NaCl.
(2)Cl2和NaClO2反应的化学方程式为:2NaClO2+Cl2═2ClO2+2NaCl.
此法与Kestiog法相比,其优点是:没有氯气生成,二氧化氯和氯化钠容易分离.故填:无有害气体生成,产品易分离.
(3)①为了保证实验成功,在A装置外面需加60℃水.故填:60℃水.
B装置外面需加冰水.故填:冰水.
②可以用氢氧化钠溶液吸收二氧化氯.故填:氢氧化钠溶液.

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