Chemistry Final

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Author:
Anonymous
ID:
1723
Filename:
Chemistry Final
Updated:
2009-11-26 13:20:46
Tags:
Chemistry CHAPTER 2
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Description:
Chapter 2
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  1. What is Scientific Notation?
    • *Is used for numbers that are very big or very small.
    • ~It is based on powers of the base of 10


    • EX: 70000000
    • 7.0
    • 7.0x107
  2. Significant Figures
    • ~Digits other than zeros are significant:
    • EX: 1293;456;93

    • ~Zeros between 2 other significant digits are significant:
    • EX: 6007;708;56703

    • ~One or more zeros after a decimal point and after a #are significant:
    • EX: 3.000;.00006;.000800;9.0003000

    • ~Zeros used to space the decimal point are not significant
    • EX: .0008;8000;.0008
  3. What is density?
    • =mass divided by volume
    • :A derived unit
  4. How do you convert from Kelvin to Celsius?
    K=C+272
  5. How to convert from Celsius to Kelvin?
    C=K-273

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