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对高中第一册课本(全日制十年制)实验(5-1),我们改用市售浓盐酸和以盐酸和水按1:2稀释的稀盐酸分别和Zn粒作用,实现现象显著,效果较好。
In the experiment (5-1) of the first volume textbook (full-year 10-year system) of the senior high school, we used commercially available concentrated hydrochloric acid and dilute hydrochloric acid diluted with hydrochloric acid and water at a ratio of 1:2 and Zn particles, respectively, to achieve remarkable results. The effect is good.