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8/30/2013
1
Classification of Matter
Matter: has mass, occupies space
Pure substances
• Only 1 substance present
• Definit...
8/30/2013
2
Examples
Of elements
Allotropes
C
O
P
8/30/2013
3
Heme – hemoglobin example
CO2 bound to protein chain – doesn’t directly compete with O2
8/30/2013
4
All living things are heterogeneous
8/30/2013
5
8/30/2013
6
Molecular
Substances
Dissolve as
Molecules
Molecular
Substances
Are composed
Of non-metals
Ionic substances
Ar...
8/30/2013
7
Classification of matter
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Classification of matter slides

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Classification of matter slides

  1. 1. 8/30/2013 1 Classification of Matter Matter: has mass, occupies space Pure substances • Only 1 substance present • Definite and constant composition • Same properties under same conditions (ex: bp, mp) • Elements or compounds Mixtures • Physical combimation • Varying composition and properties • Homogeneous – 1 phase – Mixed on particle level – not groups • Heterogeneous – 2 or more phases
  2. 2. 8/30/2013 2 Examples Of elements Allotropes C O P
  3. 3. 8/30/2013 3 Heme – hemoglobin example CO2 bound to protein chain – doesn’t directly compete with O2
  4. 4. 8/30/2013 4 All living things are heterogeneous
  5. 5. 8/30/2013 5
  6. 6. 8/30/2013 6 Molecular Substances Dissolve as Molecules Molecular Substances Are composed Of non-metals Ionic substances Are composed of Ions Often a metal + non-metal Or poly atomic ion NaCl Na2SO4 Dissolve as individual ions Electrolytes Recurrent theme!!!
  7. 7. 8/30/2013 7 Classification of matter

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