5 composition of matter
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5 composition of matter

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5 composition of matter Presentation Transcript

  • 1. Composition of Matter
  • 2.
    • All matter is made up of atoms.
    • Elements - when all the atoms in the matter are the same.
    • There are 118 elements.
    • Ex: Carbon and Oxygen
  • 3. Compounds
    • Compounds - matter that is made up of 2 or more combined elements.
    • Compounds look different than the elements that make them up.
  • 4. Compound Ex:
    • Ex: H & O = H 2 O
    • C & O = CO 2
    • C,H & O = C 6 H 12 O 6
  • 5. Substance
    • Substance - matter that is either an element or a compound.
  • 6. Mixture
    • Mixture - material that is made up of 2 or more substances that can be separated physically.
  • 7. 2 Types of Mixtures
    • Heterogeneous
    • Homogeneous
  • 8. Heterogeneous Mixtures
    • Heterogeneous Mixture- mixture that is unevenly mixed.
    • You can see the stuff in the mixture.
  • 9. Heterogeneous Mixture Ex:
  • 10. Homogeneous Mixture
    • Homogeneous Mixture- mixture that is evenly (uniformly) mixed.
    • Homogeneous Mixtures are also called solutions .
  • 11. Homogeneous Mixture Ex:
  • 12. Matter Substance Mixture Element Compound Homogeneous Heterogeneous
  • 13. Colloid
    • Colloid - a heterogeneous mixture that never settles.
    • Ex: milk or fog
  • 14. Suspension
    • Suspension - heterogeneous mixture that contains a liquid where visible particles settle.
  • 15. Suspension Examples
  • 16. Tyndall Effect
    • Tyndall Effect- the scattering of light by particles in a mixture.
  • 17. Tyndall Effect Ex:
  • 18. What do you have? YES YES NO Does it scatter light? YES NO NO Can it be filtered? YES NO NO Does it settle? Suspension Colloid Solution