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Copy of Elements, Compounds and Mixtures

Published on Nov 18, 2015

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PRESENTATION OUTLINE

ELEMENTS,COMPOUNDS,AND MIIXTURES

Photo by OndraSoukup

ELEMENTS

  • Elements are substances made entirely of one atom
  • Examples: Carbon C Rhodium Rh
  • Oxygen O
  • Iron Fe
  • Hydrogen H

COMPOUNDS

  • Compounds are 2 or more elements chemically combined
  • Examples: H2O Be2HO
  • NaCl
  • Fe2C
  • Ca4H

MIXTURES

  • A substance made by mixing other substances
  • Examples: Kool Aid, Mixed Fruit
  • Chocolate Milk
  • Salt Water
  • Trail Mix

MIXTURE: HETEROGENEOUS

WHERE YOU CAN SEE THE DIFFERENT COMPONENTS OF THE MIXTURE.

MIXTURE: HOMOGENEOUS

A MIXTURE THAT IS UNIFORM THROUGHOUT.

COMMON ELEMENTS IN THE EARTHS CRUST

  • Oxygen ( 46.6% )
  • Silicon ( 27.7% )
  • Aluminum ( 8.1 % )
  • Iron ( 5.0% )
  • Calcium ( 3.6 % )