化学方程式的教学在初中化学中是重点知识,而化学方程式的配平是在化学式前填上适当的化学计量数,使方程式左右两边每一种元素的原子个数相等,从而体现质量守恒定律,学生在解答这部分知识时常陷入困境,不知如何应对,现结合自己的教学体会谈些关于化学 The teaching of chemical equations is the key knowledge in junior high school chemistry, and the balance of the chemical equation is to fill in the appropriate stoichiometry before the chemical formula so that the number of atoms of each element on the left and right sides of the equation is equal to reflect the law of mass conservation. In answer to this part of the knowledge, I often get into trouble. I don’t know how to deal with it. Now I will talk about chemistry with my teaching body.