Science 16-29

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Author:
torpadilla
ID:
124029
Filename:
Science 16-29
Updated:
2011-12-16 00:15:51
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Science
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Description:
16-29
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  1. is the basic partical from which all elements are made
    Atoms
  2. is a characteristic of a pure substance that descirbes its ability to change into different substancesex. rust
    Chemical Property
  3. is the study of the properites of matter and how matter changes
    Chemistry
  4. is a pure substance that can not be broken down into any other substance by chemical or physical means
    Element
  5. How do you calculate density
    mass over volume
  6. How do you calculate volume? What are you final units?
    • length X width X height
    • small = cm3 large= m3
  7. is anything that has mass and takes up spaceex. a phone
    Matter
  8. is the charcteristic of a pure substance that can be observed without changing into another substanceex. sugar will disolve in water
    Physical Property
  9. What are atoms held together by?
    chemical bonds
  10. what are the two kinds of mixtures?
    the heterogeneous mixture and homogeneous mixture
  11. what are the units for
    mass
    length
    volume
    density
    • mass = g or kg
    • length = cm, m, mm
    • volume = cm3 mL
    • density = g/cm3 ,liquid g/mL
  12. what is the difference between a substance and a mixture?
    • a substance is one single matter and a mixture is more then one matter.
    • ex. substance = water mixture = cake
  13. what is the difference between weight and mass?
    • weight is the measure of gravity on you
    • mass is the measurement of the amount of matter in the object
  14. what do these atoms form when held together?
    molecules

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