Chemistry

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Author:
kellymurphy
ID:
37112
Filename:
Chemistry
Updated:
2010-09-24 18:34:05
Tags:
chem
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Description:
Exam chapter 1-3
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  1. mega
    106
  2. kilo
    103
  3. deci
    10-1
  4. centi
    10-2
  5. milli
    10-3
  6. micro
    10-6
  7. nano
    10-9
  8. pico
    10-12
  9. 1in=? cm
    2.54cm
  10. 1yd= ? m
    0.9144m
  11. 1mi= ? km
    1.609km
  12. 1m= ? in
    39.37 in
  13. 1 km= ? mi
    0.6215 mi
  14. 1lb= ? g
    453.6g
  15. 1 oz= ? g
    28.35g
  16. 1 kg= ? lb
    2.205lb
  17. 1 gal= ? L
    3.785L
  18. 1qt= ? mL
    946.4mL
  19. 1oz (fluid)= mL
    29.6mL
  20. 1L = ? qt
    1.057qt
  21. density
    Mass/volume
  22. law of conservation of mass
    no detectable gain or loss of mass occurs in chemical reactions. Mass is conserved
  23. law of definite proportions
    in a given chemical compound, the elements are always combined in the same proportions by mass
  24. law of multiple proportions
    whenever two elements form more than one compound, the different masses of one element that combine with the same mass of the other element are in the ratio of small whole numbers
  25. % mass of element
    • mass of element
    • mass of whole sample x 100%
  26. emperical formula
    simplest whole number ratio of atoms of each element in a compound
  27. percentage yield
    (actual yield/theoretical yield) x 100%
  28. ionic binary cmpds
    • name the metal first
    • stem of nonmetal + ide ending
  29. binary cmpds of two nonmetals
    • name more metallic element first
    • ide ending to last element
  30. H2SO4
    Sulfuric acid
  31. H2SO3
    sulfurous acid
  32. HNO3
    nitric acid
  33. HNO2
    nitrous acid
  34. H3PO4
    phosphoric acid
  35. H3PO3
    phosphorous acid
  36. H2CO3
    carbonic acid
  37. HClO3
    chloric acid
  38. HClO2
    chlorous acid
  39. HClO
    hypochlorous acid
  40. HClO4
    perchloric acid
  41. Na2SO4
    sodium sulfate
  42. Na2SO3
    sodium sulfite
  43. When are most ionic compounds formed?
    When metals react with nonmetals
  44. anion
    negatively charged ion
  45. cation
    positively charged ion

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