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CHEMISTRY

CHEMISTRY. The study of matter, its properties, and its changes Matter – anything that has mass and takes up space. Physical Properties. characteristic of a substance colour odour lustre texture ductility malleability melting point boiling point

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CHEMISTRY

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  1. CHEMISTRY The study of matter, its properties, and its changes Matter – anything that has mass and takes up space

  2. Physical Properties • characteristic of a substance • colour • odour • lustre • texture • ductility • malleability • melting point • boiling point • state of matter at room temperature (solid, liquid, or gas).

  3. Chemical Properties • the way a substance changes to create something new Common Chemical Properties: • ability to burn – flame, heat • flash point – lowest temp. a flammable liquid will ignite • behaviour in air – react or tarnish • reaction with water – corrode or dissolve • reaction to heating – melt or decompose

  4. Physical Change • nothing new is created • ex a change in the state of matter • dissolving or melting • doesn’t change the chemical properties

  5. Chemical Change • when a substance changes to create something new • there are 5 signs of a chemical change: • colour changes • heat or light produced or absorbed • bubbles of gas are formed • solid material forms (precipitate) • change is difficult to reverse

  6. 5.1

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