高中化学中有很多种守恒规律,如溶液中的电荷守恒、化学反应元素守恒、电子得失守恒等,掌握并运用这些守恒规律,是培养学生构建化学思想的重要内容之一,从情感和价值观方面来说,也是有利于培养学生认识世界万物守恒的守恒意识。利用这些守恒可以很简便地解决很多化学问题,本文主要讲述了利用元素守恒规律来巧解一些复杂的化学计算题。元素守恒,就是化学反应前后元素的种类和物质的量始终不会改变。在一些复杂多步的化学过程中,可以不用通过 There are many kinds of conservation laws in high school chemistry, such as the conservation of charge in solution, the conservation of chemical reaction elements and the loss of electrons. To master and use these conservation laws is one of the important contents in cultivating students’ chemistry thinking. From the aspects of emotion and values It is also conducive to cultivating students’ awareness of the conservation of all things in the world. The use of these conservation can be very simple to solve a lot of chemical problems, this article describes the use of conservation of elements to cleverly solve some of the complex chemistry problem. Elements of conservation, is the chemical reaction before and after the types of elements and the amount of material will not change. In some complex multi-step chemical process, you can not pass