PPT-Mixtures

Key Terms Mixture Solvent Suspension Dilute Colloid Concentrated Emulsion Condensation Solution Evaporation Solute Only one type of substanceparticle is present Pure Substances Pure Substances. what is . homegeneous. ?. What is solute ?. Uniformly mixed – only see one layer. substance that dissolve in a solvent. What is solvent?. Is a substance that dissolves the solute. What is solution ?. SEPARATING MIXTURES. Discuss with a partner how you would separate the following mixtures… . Salt . water . Muddy . water . Iron . filings and sand . Vegetable . oil and sand . Vegetable . oil and water . 10-8-14. . Sorting. Separating mixtures with your hands.. Ex: separating pop corn kernels, black beans, & rice. 2. . . Using a Magnet. Using the magnetic property of a substance to separate a mixture. Grade 9 Science. Mixtures can be separated by physical means…. Filtration can be used to separate an insoluble substance from a soluble substance. Evaporation can be used to separate a solute from the solvent in a solution. Chapter 2. Bamboo has properties that make it a good choice for use in chopsticks. It has no noticeable odor or taste. It is hard, yet easy to split, and it is heat resistant. You will learn how properties can be used to classify and identify matter.. What formulators need to know. Purpose of this presentation. This presentation, with notes, was prepared by ECHA, the European Chemicals Agency, to assist you in preparing a presentation about REACH and CLP relating to downstream users. The intention is that you can select relevant slides and modify them as necessary to suit your audience, whether it is management, workers, environmental health and safety professionals, authorities etc. You may use it without additional permission.. Lean mixtures - effect on temperatures. Frequently I hear the comment from non-. thermodynamicists. who know engines that . “. engine temperature increases as you go leaner - if you go too lean . you. Classifying Matter by Composition. Homogeneous. – . matter with a uniform composition. Heterogeneous. - . matter without a uniform composition. Substance. - A pure type of matter that does not vary from sample to sample. Includes . Divisions of Matter. Pure Substance. Cannot be broken down and retain its properties.. Has a fixed composition.. Every sample of a pure substance has EXACTLY the same composition AND exactly the same characteristics - homogeneous. Mixtures. A combination of two or more substances that do not combine chemically, but remain the same individual substances; can be separated by physical means. Two types:. Heterogeneous. Homogeneous. Chapter 5. Ex:. Melting. Freezing. Boiling/evaporation. Condensation. Sublimation. Dissolving. Bending. Crushing. Breaking. Chopping. Filtration. distillation. Physical change. Does not make a different substance. What formulators need to know. Purpose of this presentation. This presentation, with notes, was prepared by ECHA, the European Chemicals Agency, to assist you in preparing a presentation about REACH and CLP relating to downstream users. The intention is that you can select relevant slides and modify them as necessary to suit your audience, whether it is management, workers, environmental health and safety professionals, authorities etc. You may use it without additional permission.. . Sorting. Separating mixtures with your hands.. Ex: separating pop corn kernels, black beans, & rice. 2. . . Chromatography. Separating colored mixtures.. Ex: Black marker. 3. . . Using a Magnet. 2014EdusmartGR 4 Teacher GuideGrade 4Separating MixturesTEKS 45Matter and EnergyThe student knows thatmatter has measureable physical properties and those properties determine how matter is classified