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高考是知识、能力与技巧的较量,在有限的时间内,时间决定成败.大多数考生不是不会做高考题,而是时间不够,尤其是理综考试,很难完成全卷.“守恒法”解题就是以某种守恒作为依据,寻找某种恒等关系解题的基本思路.其特点是可以避开某些繁琐的中间过程,避免书写复杂的化学反应方程式,提高解题速度和准确度.同时守恒法的应用也是历年高考的重点.守恒法解题的关键是寻找守恒关系,列代数方程式求未知数.
The college entrance examination is a contest of knowledge, abilities and skills, in a limited time, the time determines the success or failure of the majority of candidates not not do college entrance examination questions, but not enough time, especially science comprehensive test, it is difficult to complete the whole volume. Law "is to use a certain conservation as a basis for finding some kind of equal relationship between the basic idea of solving problems, which is characterized by some tedious to avoid the intermediate process, to avoid writing complex chemical reaction equations to improve the speed of problem solving And accuracy.At the same time the application of conservation law is also the focus of the college entrance examination over the years.Conservation of the law is the key to solving the problem of conservation, algebra equations alias unknown.