霍夫曼电解器极易损坏,而且价格昂贵,因此中学里常缺少这种仪器。一些资料介绍的电解水的简易装置,难以检验生成的气体,说服力不强。在教学实践中,我们采用下面介绍的自制简易装置,不仅制作容易使用方便,并能检验生成的气体。同时由于玻璃管细,现象明显,教师可用它做演示实验,也可指导学生在课外自己动手制作和实验,以达到培养学生学习兴趣,帮助学生理解水的组成及氢气和氧气有关重要性质等知识的目的。 Hoffman electrolyzers are extremely fragile and expensive, so secondary schools often lack such instruments. Some information on the simple device of electrolyzed water, it is difficult to test the generated gas, persuasive power is not strong. In teaching practice, we use the self-made simple device described below, which not only makes it easy to use and can test the generated gas. At the same time, because the glass tube is thin, the phenomenon is obvious. Teachers can use it as a demonstration experiment, and can also guide students to do hands-on production and experiment outside class to achieve students’ interest in learning and help students understand the composition of water and the important properties of hydrogen and oxygen. the goal of.