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质量守恒定律是基本的重要的自然规律,也是中学生学习化学、发展能力的一种重要的逻辑思维方法.它能使人透过复杂的现象,一眼见底地看清问题的本质,从而快捷、准确、简便地解决问题.下面以四川省2007年高考理综化
The law of conservation of mass is a basic and important natural law. It is also an important logical thinking method for middle school students to study chemistry and develop their abilities. It enables people to see the essence of a problem at a glance through a complex phenomenon, so that Accurately and simply solve the problem. The following is a comprehensive survey of senior college entrance examination in Sichuan Province in 2007.