在化学计算题中,有时候巧用各种守恒能快速解题,现将一些守恒方法总结如下。一、质量守恒在解题的过程中,要充分运用质量守恒定律。质量守恒定律即参加化学反应的各种物质的质量总和等于反应后生成的各种物质的质量总和。依据该定律可得出下面的等式:(1)反应物的质量之和=产物的质量之和。(2)反应物减少的总质量=产物增 In stoichiometry, sometimes clever use of various conservation can quickly solve the problem, now some conservation methods are summarized as follows. First, the quality of conservation In the process of solving problems, we must make full use of the law of conservation of mass. The law of conservation of mass means that the sum of the masses of the various substances involved in the chemical reaction equals the sum of the masses of the various substances produced after the reaction. According to this law, the following equation can be drawn: (1) The sum of the masses of the reactants = the sum of the masses of the products. (2) Total mass of reactant reduction = product gain