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1.二氧化碳的实验室制法,课本上只讲稀盐酸与石灰石反应。我们增加了稀硝酸、稀硫酸与石灰石的反应实验,使学生了解一般方法和不能用稀硫酸的原因。
1. The laboratory method for the production of carbon dioxide, only the reaction of dilute hydrochloric acid and limestone in the textbook. We have added experiments for the reaction of dilute nitric acid, dilute sulfuric acid and limestone so that students understand the general method and why dilute sulfuric acid cannot be used.