Chem test 1

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Author:
Anonymous
ID:
263069
Filename:
Chem test 1
Updated:
2014-02-20 22:02:12
Tags:
Chem 108 test bcc
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Description:
test 1 review
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  1. Density
    the degree of compactness of a substance.
  2. Substance
    Any kind of matter which all samples are the same as their properties
  3. Mixture
    When two or more substances are blended together but do not chemically react
  4. Fahrenheit to Celcius
    F=(9/5)C+32
  5. Energy
    The ability to do work
  6. Two classes of substances
    Compound and element
  7. Element
    A substance that cannot be broken down
  8. Compound
    A substance that can be broken down into two or more elements
  9. Molecule
    The smallest unit of an element or compound
  10. Atom
    Fundamental building block.
  11. Coefficient
    Number in front of formula indicating number of molecules present
  12. subscript
    Number of atoms of a given kind present
  13. Protons
    Positive charge, Mass of 1 AMU
  14. Neutrons
    Neutral, no electrical charge
  15. Electrons
    negative charge, almost no weight

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