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所谓“虚拟法”就是先通过假想,然后进行校正(或论证),最终得出正确结论的一种具有创造性的科学思维方法。化学计算题是高考理科综合卷中的重点题及高考单科化学卷中的压轴题,此类试题要求考生借助于数学中的常规计算方法来解决实际问题。其知识点往往涉及过量的判断、混合物反应计算、数值范围讨论等,题目变化大,思维性强,综合应用能力要求较高,特别是将推理计算、定性分析、判断等融为一体,
The so-called “virtual law” is a kind of creative scientific thinking method that first passes the hypothesis, then corrects (or proves), and finally arrives at a correct conclusion. The chemistry calculation questions are the key questions in the college entrance examination science synthesis volume and the final axis questions in the college entrance examination single-chemistry chemistry volume. Such examination questions require candidates to solve the practical problems by means of the conventional calculation methods in mathematics. The knowledge points often involve excessive judgments, mixture reaction calculations, numerical range discussions, etc. The topics vary greatly, and the thinking ability is strong, and the comprehensive application ability is required to be high. In particular, inference calculation, qualitative analysis, and judgment are integrated.