化学计算题综合考查学生多方面的基础应用能力,譬如:逻辑推理、抽象辨别、质量守恒、原理应用等等。各地中考化学考试方式差别很大,但是计算部分主要以结合方程式的质量计算为主,增大难度的方式大致有三种,与溶液结合,综合溶质的质量分数的计算;与实验结合,成为实验方案 Comprehensive calculation of chemical problem Students in many aspects of basic application capabilities, such as: logical reasoning, abstract identification, conservation of mass, the principle of application and so on. However, the main part of the calculation is mainly the mass calculation based on the equation. There are roughly three ways to increase the difficulty, which are combined with the solution and the calculation of the mass fraction of the solute. When combined with the experiment, it becomes the experimental scheme