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Classification Of Matter
Classification Of Matter
Classification Of Matter
Classification Of Matter
Classification Of Matter
Classification Of Matter
Classification Of Matter
Classification Of Matter
Classification Of Matter
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Classification Of Matter

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  • There are two kinds of pure substances: elements and compoundsElements are made up of only one type of atom. Examples are copper, aluminum, and hydrogen. All the elements discovered thus far are shown in a periodic table.
  • Compounds are made of two or more elements or atoms. Examples are water, hydrogen peroxide and table sugar. The ratio of the elements in a given compound is fixed. For example, the ratio of hydrogen to oxygen in water is 2 atoms of hydrogen to 1 atom of oxygen. In hydrogen peroxide, hydrogen and oxygen are also combined, but the ratio is 2 atoms of hydrogen to 2 atoms of oxygen. Water and hydrogen peroxide are different compounds with different properties.
  • Transcript

    • 1. Classification of Matter
      Rhodora Snow Ph.D.
    • 2. Definition of Matter
      Has mass and occupies space
      Examples
      Water
      Wood
      Plastic
    • 3. Classification of Matter
      Pure Substances
      Fixed Composition
      Mixtures
      Variable Composition
      Howdoyouturnthison. A plate of dolly mixture. 29 July 2008. http://commons.wikimedia.org/wiki/File:Dolly_mixture.JPG
    • 4. Kinds of Pure Substances
      Elements
      • One type of atom
      • 5. All discovered elements are listed in a periodic table
      Accordion Guy. Periodic Table of Google Images. September 2006.
      http://www.neatorama.com/2006/09/24/
    • 6. Kinds of Pure Substances
      Compounds
      • Made of two or more elements in a fixed ratio
      • 7. Examples
      • 8. Water (2 H: 1 O)
      • 9. Sakurambo. Water molecule. 4 August 2007. http://commons.wikimedia.org/wiki/File:Water_molecule_2.svg
      • 10. Hydrogen peroxide (2 H: 2 O)
      • 11. Benjah-bmm27, Hydrogen peroxide. 5 May 2007. http://commons.wikimedia.org/wiki/File:Hydrogen-peroxide-3D-vdW.png
    • Elements and Compounds
      Compounds may be separated into its component elements.
      Example
      Electrolysis of water
      General Chemistry students of University of Siegen [photographer], Public Domain, http://upload.wikimedia.org/wikipedia/commons/7/78/Elektrolyse1.jpg
    • 12. Mixtures
      • Two or more substances physically mixed
      • 13. Examples are
      • 14. Air (mixture of mostly nitrogen and oxygen)
      • 15. Steel (mixture of iron, nickel, carbon abd chromium)
      • 16. Sugar-Water (two mixtures may look the same but one could taste sweeter because it has a higher ratio of sugar to water)
    • Kinds of Mixture
      Homogeneous
      • small particles
      • 17. Uniform throughout
      • 18. May separate the salt from water by boiling off the water
      Heterogeneous
      • Big particles
      • 19. Can distinguish boundary of particles
      • 20. May separate the nuts and bolts by pouring off the water
    • Classification of Matter

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