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化学实验教学是实施全面化学教育的一种最有效的形式,它不仅是学生获取化学知识、认识化学规律、形成化学概念、提高各种能力的重要途径,还可以调动学生学习化学的积极性。在金属与氯气反应实验的教学中,考虑到氯气的毒性比较大,为了减少实验危害,多是由教师进行演示实验。为了改变该实验教学的现状,笔者尝试对原有的实验装置进行了改进,设计出了全封闭式的新型实验装置。该实验装置
Chemistry experiment teaching is one of the most effective forms of implementing comprehensive chemistry education. It is not only an important way for students to acquire chemical knowledge, recognize chemical laws, form chemical concepts and improve various abilities, but also arouse their enthusiasm for learning chemistry. In the reaction of metal and chlorine experiment teaching, taking into account the toxicity of chlorine is relatively large, in order to reduce the harm of experiments, mostly by teachers to demonstrate experiments. In order to change the status quo of the experimental teaching, the author tried to improve the original experimental apparatus and designed a totally enclosed new experimental apparatus. The experimental device