化学是一门以实验为基础的学科。实验教学可以培养学生观察和实验的能力。天津市1996年中考化学实验题的命题正是结合这一能力要求,侧重考查了学生的实验观察能力、分析能力和推理判断能力。1 毕业卷中的实验题 该项题目中的三道小题所给图示全部出自化学课本中的原图。 1.(原卷第22题)下图是配制氯化钠溶液操作过 Chemistry is an experiment-based discipline. Experimental teaching can cultivate students’ ability to observe and experiment. The proposition of the chemistry experiment in Tianjin in 1996 was to combine this ability requirement, focusing on students’ experimental observation ability, analysis ability, and reasoning judgment ability. 1 Experimental Questions in the Graduation Volume The three questions in this topic are all given in an illustration from the chemistry textbook. 1. (original volume 22) The following figure is the preparation of sodium chloride solution