Separation of Mixtures II Distillation The boiling of a liquid to produce a vapor that is then condensed into a liquid Pure Substance Pure Substance A pure substance always has the same composition while a mixture can contain one or more pure substances. Elements* or compounds* A compound contai...
What is the difference between a pure substance and a mixture:一种纯物质和混合物的区别是什么a,A,be,Pure,and,pure,what,the,纯物质,What 文档格式: .ppt 文档大小: 218.5K 文档页数: 11页 顶/踩数: 0/0 收藏人数: 0 评论次数: 0 文档热度: ...
(solid, liquid, and vapor phases) 2. Mixture of liquid water and water vapor 3. Carbon dioxide, CO 2 4. Nitrogen, N 2 5. Mixtures of gases, such as air, as long as there is no change of phase. 3 State Postulate Again, the state postulate for a simple, pure substance states ...
methodofseparatingandidentifyingmixtures; usedtoseparatethesolutesinamixture Eg.toidentifyartificialdyesinfood canbeusedtoidentifyverytinyamountsofsubstancesChromatographyChromatographyChromatography principleinvolveddependsuponthedifferentsolubilitiesofthesubstancesinthemixtureinthesolventused–themostsolublethemostsoluble...