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2005年全国各地的中考化学命题,在根据化学方程式的计算方面着实下了一番功夫,一些富有新意的考题在令人称赞的同时更使人赏心悦目,使学生走出了乏味、枯燥的计算误区,从而对化学计算产生了好感和兴趣。现归纳解析如下。一、让学生自编考题例1.(2005济南考题)请你利用图1中所提供的3个数据,自拟一道有关化学方程式的计算题,并写出解答过程。
In 2005, the entrance examinations for chemistry in various parts of the country actually took a lot of effort to calculate according to the chemical equation. Some of the most innovative exams were even more pleasing and pleasing, leaving the students out of boring, boring misunderstandings. Thus has produced the good impression and the interest to the chemical computation. Now summarized as follows. First, let the students prepare their own test questions Example 1 (2005 Jinan test) Please use the three data provided in Figure 1, to formulate a calculation of the chemical equation, and write the answer process.