1. Home
  2. Flashcards
  3. Preview

Conversions

  1. breaking bonds=?
    energy released
  2. making bonds=? 
    takes energy and reorganizes
  3. chemistry
    • stuff that describes matter
    • -properties
    • -changes
    • -energy
  4. matter
    anything with mass and takes up space
  5. energy
    ability to do work or transfer heat
  6. scientific law
    general statement based on observations
  7. law of conservation of matter
    no change of quantity of matter during physical or chemical reactions
  8. law of conservation of energy
    energy not created or destroyed chemical/physical, just converted
  9. law of conservation of matter-energy
    • amoung of energy+matter= fixed limit
    • E=mc2
  10. how many elements in the periodic table?
    117
  11. who organized periodic table?
    Dmitri Mendeleev (1834- 1907)
  12. Who was Glenn Seaborg?
    • -discovered 8 new elements
    • -only living person with element named after them
    • -1912-1999
  13. chemical elements
    pure substances, can't be broken down normally
  14. parts of an atom
    • -nucleus=protrons, neutrons
    • -eletrons in space about nucleus
  15. chemical compounds
    -multiple element's atoms put together, can't break down without loosing properties of properties (is possible to break apart though)
  16. molecule
    smallest form of a compound
  17. macroscopic
    can see with naked eyes
  18. microscopic
    can't see with naked eye
  19. (l)
    liquid
  20. (s)
    solid
  21. (g)
    gas
  22. (aq)
    aqueous solution
  23. List state of matter has the highest - lowest energy
    gas, liquid, solid
  24. liquids and gases need..
    -container to take on shape or to fill
  25. physical properties
    color, melting point, boiling point
  26. physical changes
    melting, boiling, dissolving
  27. distillation
    to boil = collect vapor then condenses creating into pure water
  28. homogenous
    can't see parts when mixed
  29. heterogenous
    can see parts when mixed, can separate into parts
  30. density
    mass/volume
  31. 1cm3
    1mL
  32. qualitative
    physical state, not measurements
  33. quantitative
    measurements, numbers
  34. 1km
    1000m
  35. 1m
    100cm
  36. 1cm
    10mm
  37. 1nm
    1.0x10-9
  38. M
    mega

    106
  39. k
    kilo

    103
  40. da
    deka

    10
  41. d
    deci

    10-1
  42. c
    centi

    10-2
  43. m
    milli

    10-3
  44. u
    micro

    10-6
  45. n
    nano

    10-9
  46. p
    pico

    10-12
  47. f
    femto

    10-15
  48. 1m
    39.37in
  49. 2.54cm
    1in
  50. 1L
    1.06 qt
  51. 1qt
    0.946liter
  52. 1 gal
    3.79 L
  53. 454g
    1lb
  54. celcius --> fahrenheit
    C= (5/9)(F -32)
  55. fahrenheit -->
    F= (9/5)(C+32)
  56. 1K
    1 degree Celcius
  57. water boils
    100 degress celcius, 212 degrees fahrenheit, 373K
  58. water freezes
    0 degrees celcius, 180 degrees fahrenheit, 273 K
  59. Celcius --> K
    K= C +273.(15)
  60. accuracy
    how close measures are to right value, exactly where you want it
  61. precise
    how close individual measurements are to each other, in the same area
  62. error=
    experimentally determined value - accepted value
  63. percent error=
    error/ accepted value x 100%
Author
akcinloor
ID
174739
Card Set
Conversions
Description
chapter 1
Updated

  1. Home
  2. Flashcards
  3. Preview