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正确书写常见反应的离子方程式,这不仅是新课程标准要求的内容,也是教材中重要的教学内容。无论是高考还是学业水平测试,这是一个必考的内容。如何正确书写离子方程式,这是一个老生常谈的问题,不管是人教版或苏教版还是鲁教版化学必修1中,都介绍了书写离子方程式的分步写法。照理说,这个内容对学生来说应该不难,但事实却是,许多学生在书写离子反应式时经常犯错,这是什么原因呢?为了弄清此问题,我们从教师教和学生
Correctly writing common ion equation of reaction, which is not only the content of the new curriculum standards, but also an important teaching content. Whether it is college entrance examination or academic level test, this is a necessary test content. How to correctly write the ion equation, which is a commonplace question, whether it is the PEP or the Sujiao version or the Lujiao version of the chemical compulsory 1, are introduced to write the ion equation step by step wording. It is fair to say that this should not be difficult for students, but the fact is that many students make mistakes when writing ionic reactions. What is the reason? In order to clarify this issue, we learned from teachers and students