The GED Science Test: Chemistry

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Full list of words from this list:

words only definitions & notes
  1. acid
    a sour water-soluble compound with a pH of less than 7
  2. atom
    the smallest component of an element
  3. base
    a compound reacting with an acid to form a salt and water
  4. bond
    an electrical force linking atoms
  5. catalyst
    substance that initiates or accelerates a chemical reaction
  6. compound
    a substance formed by chemical union of two or more elements
  7. electron
    an elementary particle with negative charge
  8. element
    a substance that cannot be separated into simpler substances
  9. enzyme
    a complex protein produced by cells that acts as a catalyst
  10. gas
    state of matter distinguished from solid and liquid states
  11. liquid
    the state in which a substance exhibits a readiness to flow
  12. matter
    that which has mass and occupies space
  13. molecule
    the simplest structural unit of an element or compound
  14. neutron
    a subatomic particle with zero charge
  15. nucleus
    the positively charged dense center of an atom
  16. osmosis
    diffusion of molecules through a semipermeable membrane
  17. proton
    a stable particle with positive charge
  18. reaction
    a process in which a substance is changed into another
  19. saturate
    cause to combine to the fullest possible extent
  20. solid
    the state in which a substance has no tendency to flow
  21. solution
    a homogeneous mixture of two or more substances
  22. synthesis
    the process of producing a chemical compound
Created on Thu Mar 11 12:18:38 EST 2021 (updated Fri Mar 12 09:51:09 EST 2021)

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