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溶解度和溶质的质量分数(即溶液的百分比浓度)都是中考的必考内容．从试题的知识点来看,主要集中在溶解度定义、溶解度曲线、混合物的分离方法、溶液的稀释或浓缩的计算、化学方程式与溶质质量分数的综合计算等．从试题的考查倾向来看,在注重基础的同时明显加大了对能力的要求,比如信息的获取能力、数据的整理能力、实验探究能力、开放题的表达能力等等．这几方面的能力考查也将是今后考查的重中之重．同时我们也发现有关溶解度的繁杂计算有所弱化,一旦考查,注重的必定是技巧．这些都给我们这样一个提示:训练中要重基础不要求难,要注重实际应用,特别是要强化上述能力的训练．
Solubility and solute mass fraction (ie, the percentage concentration of the solution) are all mandatory requirements for the exam. From the point of view of the questions, it mainly focuses on the definition of solubility, the solubility curve, the separation method of the mixture, the calculation of dilution or concentration of the solution, and the comprehensive calculation of the chemical equation and the solute mass fraction. From the examination propensity of the questions, the emphasis on the foundation has significantly increased the requirements for competence, such as the ability to obtain information, the ability to organize data, the ability to explore the experiment, the ability to express open questions, and so on. The ability to examine these aspects will also be the top priority for future examinations. At the same time, we also found that the complexity of the calculation of solubility has been weakened. Once examined, the emphasis must be on skills. These all give us such a hint: In training, we must emphasize that the foundation does not require difficulty, we must pay attention to practical applications, especially to strengthen the training of the above capabilities.