Chem. 403 class 1

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Author:
mmb65
ID:
20575
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Chem. 403 class 1
Updated:
2010-05-26 16:22:38
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chemistry chem
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Stuff from class one chem
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  1. What are Physical Properties?
    properties that a substance has by itself w/o interacting with another substance
  2. examples of physical properties
    color, physical state(Liquid gas solid), density, electrical conductivity
  3. What is a physical change?
    A substance that changes form

    ex. water evaporates
  4. what are chemical properties?
    properties of a substance when it changes into or interacts with another substance

    ex. flammability and corrosiveness
  5. What are chemical changes?
    They make something new and also a change in energy
  6. feet is a measure of
    length
  7. feet squared is a measure of...
    area
  8. average speed=
    average speed= (distance/time)
  9. SI Unit and abbreviation:
    Mass
    Killograms (Kg)
  10. Unit and abbreviation:
    Length
    Meter (m)
  11. Unit and abbreviation:
    Time
    Second (s)
  12. Unit and abbreviation:
    Temperature
    Kelvin (K)
  13. Unit and abbreviation:
    Electric current
    ampere (A)
  14. Unit and abbreviation:
    Amount of substance
    mole (mol)
  15. Unit and abbreviation:
    Luminous intensity
    Candela (cd)
  16. Prefix: amount and abbreviation
    tera
    one trillion (T)

    10x12
  17. Prefix: amount and abbreviation
    giga
    • one billion (G)
    • 10x 9
  18. Prefix: amount and abbreviation
    mega
    • one million (M)
    • 10 x 6
  19. Prefix: amount and abbreviation
    kilo
    • one thousand (k)
    • 10 x 3
  20. Prefix: amount and abbreviation
    deci
    • one tenth (d)
    • 10 x -1
  21. Prefix: amount and abbreviation
    centi
    1/100 (c)

    10 x -2
  22. Prefix: amount and abbreviation
    milli
    1/1000 (m)

    10 x -3
  23. Prefix: amount and abbreviation
    micro
    1/1,000,000 (u)

    10 x -6
  24. Prefix: amount and abbreviation
    nano
    1/billion (n)

    10 x -9
  25. Prefix: amount and abbreviation
    pico
    1/trillion (P)

    10 x -12
  26. volume formula
    volume= length x length x length
  27. density formula
    density= mass/volume
  28. extensive property examples
    mass and volume
  29. intensive property example
    density
  30. extensive properties depend on
    amount of stuff you have
  31. intensive properties does not depend on
    the amount of stuff you have
  32. kelvin scale zero point called
    absolute zero
  33. C to Kelvin
    K= C + 273.15
  34. C to F
    F= (9/5)C + 32
  35. F to C
    C=(F-32)(5/9)
  36. Scientific notation numbers are expressed between and
    1 and 10
  37. Significant figures: how many sig figs?
    initial zeros 0.03264
    4
  38. Significant figures: how many sig figs?
    initial zeros are there
    to locate the decimal point
  39. Significant figure: how many sig figs?
    zeros at end of number
    32640
    either 4or 5

    • this problem can be solved using scientific notation
    • 3.264*10(4)
  40. Accuracy
    How well a measured value agrees with the true value
  41. Precision
    repeatability of the measurement

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