初中化学置换反应常见类型简析黄丽娟置换反应是初中化学教学中的重要概急，也是一个难点。从定义上说，是一种单质和一种化合物相互反应，生成另一种单质租另一种化俣物。实际上，一种单质租一种化合物间能否发生置换反应所涉及的问题很多。初中化学中主要有在溶液中进方... A Brief Analysis of Common Types of Chemical Replacement Reactions in Junior Middle School Huang Lijuan The replacement reaction is an important and urgent problem in junior middle school chemistry teaching. It is also a difficult point. By definition, it is a single substance and a compound that react with each other to produce another kind of simple substance to rent another chemical compound. In fact, there are many problems involved in whether a single substance can replace a compound or not. In junior high school chemistry, there are mainly in the solution...