一、复习要求1 了解　溶质、溶剂、悬浊液、乳浊液的概念 ;溶液、悬浊液和乳浊液在生产和生活中的应用 ;固体物质的溶解度与温度的关系、溶解度曲线 ;溶解、结晶、结晶水合物的概念 ;混合物的分离———过滤、结晶的原理和方法。2 理解　溶液 ;饱和溶液和不饱和溶液 ;溶解度 ; First, review requirements 1 understand the concept of solute, solvent, suspension, emulsion; application of solution, suspension and emulsion in production and life; solubility of solid material and temperature, solubility curve; dissolution The concept of crystallization, crystallisation and crystallization of hydrates; the separation of mixtures - principles and methods of filtration, crystallization. 2 understanding solution; saturated solution and unsaturated solution; solubility;