Chap. 3 Chem. Midterm Rev.

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Author:
Jpadawanj
ID:
189567
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Chap. 3 Chem. Midterm Rev.
Updated:
2012-12-14 23:05:37
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Chemistry Midterm
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Midterm 2012
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  1. matter
    anything that has mass or volume 
  2. solid
    • defitne shape
    • fixed volume
    • negligable 
  3. liquid 
    • indefinte shape
    • fixed 
    • negligable 
  4. gas
    • indefinite
    • unfixed
    • very compressible 
  5. solid to gas 
    sublimation 
  6. gas to solid 
    depostition 
  7. physical prop. 
    • a property that can be observed w/o changing the chemical formula of the substance 
    • e.g. order, melting, boiling point, physical  state, density, hardness, shape, taste, point, electrical conductivity 
  8. chemical process 
    • a porperty a substance that cannot be observed without change the chemical formula of the substance 
    • REACTION 

  9. compounds 
    pure substance that can be broekn down into two or more substantces by chemical reaction 
  10. element
    • substance that cannot be broken down farther by chemical means 
    • on the PT 
  11. pure substance 
    • always the smae compostition 
    • elements or compunds 
    • pure water-only contains H2O 
  12. mixture 
    • variable compostition 
    • e.g. wood(pine or birch), wine(red or white), coffee(strong  or bitter), earth water (dirt in H2O) 
  13. homogeneous mixture
    • solution 
    • same throughout 
    • does not vary in regions of mixture 
  14. heterogeneous mixture 
    • contains regions that have different properties from those of other regions 
    • oil and water 

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