PPT-Pure Substances and Mixtures

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. Seed Sensibility Soaps Nourish Sevani Seventh Generation Sewing Expressions LLC SheAyurvedic Skin Care ShiKai Sicobel Simplers Botanicals Simply Rustic Simply Soap Skin All Natural Skin Care for Athletes Morning Indigo Skinlove Skinnyskinny Slice Sm 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.. August 31. How do you separate?. How can you separate mixtures?. Separating. Separating is based on the difference in . physical properties . of the substances…. Think about how you would separate a bag of m&ms. Introduction. matter. : anything having mass and volume. . mass. :. . weight. :. . volume. :. . units: . L, dm. 3. , mL, cm. 3. . state of matter. :. . the amount of matter in an object. . the pull of gravity on an object. 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.. II. Composition of Matter. (. p.246-250). Matter Flowchart. Pure Substances. Mixtures. MATTER. A. Matter Flowchart. MATTER. Can it be separated by physical means?. Homogeneous Mixture. (solution). Heterogeneous Mixture. How can matter be classified?. Atoms . are the smallest unit of an element that maintains the properties of that element.. The most basic ingredients to . all . matter. Atoms can be combined in three majors ways:. Pure Substances. A sample of matter that has definite chemical and physical properties.. Elements. Atoms. Compounds. Molecules. Elements. pure substance that cannot be separated into simpler substance by physical or chemical means. . Matter. -. anything that has mass and takes up space. .  . Properties of Matter . -Matter can have many different properties or characteristics. -. Chemistry. . is the study of the properties of matter and how it changes. Elements, Compounds, Mixtures All matter is made of atoms. Atoms are the smallest unit of an element that maintain the properties of that element. All matter can be classified as… Elements Elements are made of only one type of atom Purity, formulations and chromatography. Chromatography. Can be used to separate mixtures and help. identify substances.. Involves a mobile phase. (e.g. water or ethanol) and a stationary phase (e.g. chromatography paper). . Keywords. :. DATE. Learning Objectives. Recognise the difference between materials, substances and . elements . Identify . elements by their names and . symbols. Explain . what is meant by a chemically pure substance.