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Types of Matter. Element Pure substance One kind of atom Smallest particle of matter that maintains chemical identity Represented by one or two letter symbol Example: Helium ( He ) “LIST OF ELEMENT YOU SHOULD KNOW”. Episode 202.

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types of matter
Types of Matter
  • Element
    • Pure substance
    • One kind of atom
      • Smallest particle of matter that maintains chemical identity
    • Represented by one or two letter symbol
    • Example: Helium (He)
  • “LIST OF ELEMENT YOU SHOULD KNOW”

Episode 202

slide2
http://www.youtube.com/watch?v=5PVCC_vp54I&feature=related
  • Compound
    • Two or more elements chemically combined (bonded)
    • Represented by chemical formula
    • Example: water (H2O)
    • H2O decomposes into hydrogen gas and oxygen gas
    • Combine in same proportion
      • H2O always contains 2 atoms of hydrogen and 1 atom of oxygen

Episode 202

slide3
Mixture
    • Two or more substances physically combined
    • Separated by physical means
    • Do not combine in same proportions
    • Heterogeneous mixture
      • Not uniform in composition
    • Homogeneous mixture (solution)
      • Uniform compostion
    • Alloy
      • Solution of two or more metals
  • Pure substances (elements and compounds) are homogeneous

Episode 202

slide4
Hydrogen peroxide
  • Carbon dioxide
  • Pizza
  • Salad dressing
  • Rust
  • Apple juice

E

C

  • Carbon
  • Carbon monoxide
  • Steel
  • Calcium
  • Lead
  • Milk

C

C

S

HE

HE

E

C

E

S

HE

Episode 202

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