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Mixtures
 

Mixtures

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    Mixtures Mixtures Presentation Transcript

    • Physical or Chemical Change?  Rusting iron nails C.  Dissolving sugar into iced tea P.  Cutting paper into smaller pieces P.  Plastic becoming brittle when left out in the sun C.
    • Review 4 States of Matter Physical Changes Change of State Chemical Changes
    • Mixtures Two or more substances physically combined NOT chemically combined The parts of a mixture can be elements, compounds or elements and compounds
    • Mixtures  No chemical reaction takes place  No new substance is formed  All substances in a mixture retain their individual properties
    • Mixtures They can be arranged in any way The ratio of a mixtures parts are not exact
    • Mixtures  Two classifications of mixtures:  1. Heterogeneous  A mixture that is not the same throughout  Salad, trail mix, Lucky Charms
    • Mixtures 2. Homogeneous A mixture that is the same throughout Its mixed so well it looks like one substance Milk, air, sugar cookies