“氯、溴、碘及其化合物”是苏教版教材化学①中的一个单元,本单元首次系统地介绍元素化合物的知识.而氯气是氯、溴、碘中最重要的一种非金属单质.因此,通过对氯气的学习不仅对于其他卤素单质的学习有指导作用,而且也为今后学习其他元素化合物奠定基础.那么如何才能学好氯气的有关知识呢?现谈一谈笔者的粗浅认识,供同学们在学习时参考. “Chlorine, Bromine, Iodine, and Their Compounds” is a unit in Jiangsu Education Edition’s textbook Chemistry 1. This unit is the first to systematically introduce the knowledge of elemental compounds. Chlorine is the most important type of chlorine, bromine, and iodine. Metals are simple substances. Therefore, learning about chlorine not only has a guiding effect on the learning of other halogen elements, but also lays the foundation for future learning of other elemental compounds. So how can we learn the knowledge about chlorine? Let’s talk about the author’s superficial understanding. For reference when students learn.