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. Grade 7. Matter. is anything that has mass and takes up space. Mass is the amount of matter in an object. . A. Solid . is matter that has a definite shape and volume. A . liquid. is matter that does not have a definite shape, but has a definite volume. Anything that has mass and occupies space.. There are two types of matter:. Pure substances. Mixtures. Pure Substance. A single kind of matter that is pure and has a specific set of properties.. Pure Substances vs. Mixtures. Mixtures. Separation. of Mixtures. Atoms & Molecules. Matter. Pure Substances. Mixtures & Solutions. Compounds. E. lements. Heterogeneous. Homogeneous. Pure Substances. Definition:. A substance that cannot be separated by a physical or mechanical process, (by hand or with a tool).. 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. Pure substances cannot be broken down by physical means.. Pure substances . contain . only one kind of molecule.. Molecules are small groups of atoms that make up matter. Example: Water is a molecule of two hydrogen atoms, and one oxygen atom. 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:. Objectives. PSc.2.1.1. . Classify matter as: homogeneous or heterogeneous; pure substance or mixture; element or compound; metals, nonmetals or metalloids; solution, colloid or suspension.. . Shoe Classification Activity. Boiling point and melting Point -. What state would this element be in at room temperature?. BP = 150. o. C, MP = -23. o. C. Core practical: chromatography - . a. nnotate the chromatogram with everything you can tell from it (including . 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. . th. Grade Science. What are “Substances”? . Substances can be identified as either…. Elements. Compounds. Mixtures. So, what is a substance?. A substance cannot be further broken down or . p. urified by physical 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. UEQ: How does the structure of matter influence its physical and chemical behavior?. LEQ: How is matter classified?. Bell Work 09/19/2012. Write question and answer.. Can you chemically break down an atom? Why or why not? . 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). .