Bits o' Chemistry

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Anonymous
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235477
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Bits o' Chemistry
Updated:
2013-09-17 21:49:30
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Chemistry abeka test
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Bit's of Chemistry having trouble remembering for test 1
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  1. a group of two or more atoms linked together by chemical bonds
    molecule
  2. homogeneous mixture
    solution
  3. composed of the same kind of matter throughout a sample
    homogeneous
  4. positively charged ion
    cation
  5. K --> C
    C= K - 273.15
  6. nano
    • n
    • 10 to the -9 power
  7. micro
    • upside down h
    • 10 to the -6 power
  8. milli
    • m
    • 10 to the -3 power
  9. centi
    • c
    • 10 to the -2 power
  10. kilo
    • k
    • 10 to the 3 power
  11. mega
    • M
    • 10 to the 6 power
  12. F --> C
    C= 5/9 (F-32)
  13. has the smallest mass
    electron
  14. makes up the nucleus
    • neutron
    • nucleon
    • proton
  15. same number of protons but different # of neutrons
    isotope
  16. u
    atomic mass
  17. determines relative mass of atoms
    mass spectrometer
  18. most abundant element in the universe
    hydrogen
  19. an atom that has gained electrons
    anion
  20. a substance that can be decomposed by chemical means into simpler substances
    compound
  21. a substance consisting of two or more pure substances that are physically mixed but not chemically united
    mixture
  22. substances that are incompletely mixed
    heterogeneous mixture
  23. chemical proporties
    • formation of a gas
    • formation of a precipitate
    • liberation or absorption of heat, light, or some other form of energy
    • distinct change of color
  24. positively charged particles
    protons
  25. atoms of the same element that have different numbers of nucleons
    isotopes
  26. subatomic particle of the atom that has no electric charge
    neutron
  27. negatively charged particles
    electrons
  28. p= m/v
    density
  29. a homogeneous part of a system that is in contact with physically distinct form of other parts of the system
    phase
  30. quantity of matter
    mass
  31. force of gravity
    weight
  32. consistency or reproducibility
    precision
  33. how close to the actual, exact value
    accuracy
  34. the ratios of the masses of each element in a given compound are always the same
    law of definite composition
  35. when two elements can combine to form more than one compound, the masses of one element that are combined with a fixed amount of the other element are in a ratio of small whole numbers
    law of multiple proportions
  36. relative charge of an electron
    -1
  37. A-
    Mass number
  38. X-
    symbol for the element
  39. Z-
    • atomic number
    • number of protons
  40. certain and uncertain numbers
    • numbers obtained by counting are usually certain
    • defined values are certain
  41. A=
    Z + N
  42. study substances that are compounds of carbon
    organic chemist

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