化学方程式是化学学习的重要内容,能够正确书写它,就能简明、形象地描述物质的化学变化,定量地研究化学反应中各物质的计量关系,还能发展记忆和思维能力。学生对化学方程式的记忆有一定困难,因此教师对学生掌握化学方程式要有明确要求,更要注意指导学生学会科学的记忆化学方程式的方法。 The chemical equation is an important part of chemistry learning. If we can write it correctly, we can describe the chemical changes of substances in a concise and vivid way, quantitatively study the relations of the substances in the chemical reactions, and develop the memory and thinking ability. Students have some difficulties in remembering chemical equations. Therefore, teachers should have clear requirements for students to master chemical equations and pay more attention to methods that guide students to learn scientific memory chemical equations.