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LSH CChem Unit 1C
Classification of Matter
Term | Definition |
---|---|
Matter | has mass and volume (stuff that takes up space) |
Substance | A pure material made with a specific, fixed composition |
Mixture | 2 or more substances physically mixed together |
Element | A substance that can be reduced to one atom and maintain all of its properties |
Compound | 2 or more substances chemically combined - with its own unique properties - not related to the properties of the components |
Heterogeneous mixture | A non-uniform mixture |
Homogeneous mixture | A mixture that is uniform throughout |
Solution | A homogeneous mixture |
Suspension | A heterogeneous mixture with visible particles |
Colloid | A heterogeneous mixture with particles too small to see individually - but will scatter a beam of light |
Tyndall effect | The scattering of light by a colloid |
Chemical change | A change that alters a substance into a new substance |
Physical change | A change that alters the appearance of a substance but leaves the nature of the substance unchanged |