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前言化学是一门以实验为根据的科学,中央人民政府编订的中学化学教学大纲(草案),明确指出,中学生在学习化学过程中,应当获得各种基本技巧如: “能简明地写出观察教师演示或自己所做的实验的结果,并能作出口头或书面的结论……能运用化学实验来解决某些不太复杂的问题”。“能使用简单化学仪器和一般药品熟悉化学实验中的基本操作……要能熟练地进行普通气体的制取,收集和它们性质的实验,并且熟悉生进行这些实验时应加注意的事项”。“能认识普通仪器装置图……并能描绘简单仪器和实验装置图样”。
Introduction Chemistry is an experiment-based science. The Central People’s Government’s outline of a chemistry curriculum for secondary schools (draft) specifies that middle school students should acquire basic skills such as “To concisely write out observations The result of a teacher’s demonstration or experiment done by himself, and verbal or written conclusions can be made ... chemical experiments can be used to solve some of the less complex issues. ” “Be familiar with the basics of chemical experiments using simple chemical instrumentation and generic drugs ... Be expert in the preparation, collection and characterization of common gases, and be familiar with what you should be aware of when performing these experiments.” “Able to recognize common equipment drawings ... and to portray simple equipment and experimental equipment drawings.”