化学方程式既是中学化学的重要用语,又是化学计算应用的基础。因此化学方程式的各类知识成为中考考查的重点和热点。在各地的化学中考中,正确书写有关的化学方程式是每年必考的题型之一。在我们九年级化学课本中,所有的化学方程式共几十个,但是在中考题里还有很多迁移应用的方程式的书写。如果在中 Chemistry equation is not only an important term for middle school chemistry, but also the basis for the application of chemical calculation. Therefore, all kinds of chemical equation knowledge become the focus and hot spot in the test. Chemistry examinations in various places, the correct writing about the chemical equation is one of the types of questions to be taken each year. In our ninth-grade chemistry textbooks, there are dozens of all the chemical equations, but there are many more equations to use in the exams. If in