2.1 What is matter? Pages 38 - 44
Goal 1 Distinguish between  elements  and  compounds
<ul><li>Matter </li></ul><ul><ul><li>Has mass and volume </li></ul></ul><ul><ul><li>Made up of atoms </li></ul></ul><ul><u...
<ul><li>Not Matter </li></ul><ul><ul><li>No mass, no volume </li></ul></ul><ul><ul><li>Examples: Light, Sound, Electricity...
<ul><li>Atoms </li></ul><ul><ul><li>General name for the smallest particle that still has properties of an element </li></...
<ul><li>Elements </li></ul><ul><ul><li>Atom with specific # of protons </li></ul></ul><ul><ul><li>Has a Name </li></ul></u...
<ul><li>Each element has its own properties </li></ul><ul><ul><li>Carbon    melting point  3550 °C </li></ul></ul><ul><ul...
<ul><li>Compounds </li></ul><ul><ul><li>Two or more different elements chemically combined </li></ul></ul>
<ul><li>Compounds have own unique properties </li></ul><ul><ul><li>Oxygen     freezing point  -218°C </li></ul></ul><ul><...
<ul><li>Molecules  </li></ul><ul><ul><li>Smallest unit of substance </li></ul></ul><ul><ul><li>Still retains properties of...
Goal 2 Interpret and write chemical formulas
<ul><li>Capital letter  </li></ul><ul><ul><li>Symbol that denotes an element always capitalized </li></ul></ul><ul><ul><li...
<ul><li>Subscript </li></ul><ul><ul><li>Number of atoms of the element </li></ul></ul><ul><ul><li>Always  after  the symbo...
<ul><li>Big number in front </li></ul><ul><ul><li>Number of molecules </li></ul></ul><ul><ul><ul><li>Elements </li></ul></...
<ul><li>How many molecules? ___ </li></ul><ul><li>How many H atoms total? ___ </li></ul><ul><li>How many O atoms total? __...
<ul><li>How many molecules? ___ </li></ul><ul><li>How many C atoms? ___ </li></ul><ul><li>How many H atoms? ___ </li></ul>...
Goal 3 Categorize materials as pure substances   or mixtures
<ul><li>Pure substances </li></ul><ul><ul><li>Fixed composition </li></ul></ul><ul><ul><li>Definite properties </li></ul><...
<ul><li>Pure substance examples </li></ul><ul><li>O  H  C </li></ul><ul><ul><li>H 2 O  HNO 3   CO 2 </li></ul></ul><ul><ul...
<ul><li>Mixtures </li></ul><ul><ul><li>Blend of  2 or more pure substances </li></ul></ul><ul><ul><li>All properties remai...
<ul><li>Mixture example: Grape juice </li></ul><ul><ul><li>Properties: wet, sweet, purple </li></ul></ul><ul><ul><li>Can s...
<ul><li>Heterogeneous mixture </li></ul><ul><ul><li>Not uniformly mixed </li></ul></ul><ul><ul><li>Can separate / settle a...
<ul><li>Homogeneous mixture </li></ul><ul><ul><li>Uniformly mixed </li></ul></ul><ul><ul><li>Will not separate out or sett...
<ul><li>Miscible liquids </li></ul><ul><ul><li>Mixture of liquids that dissolve into each other </li></ul></ul><ul><ul><li...
<ul><li>Immiscible liquids </li></ul><ul><ul><li>Cannot dissolve into each other </li></ul></ul><ul><ul><li>Can distinguis...
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2.1 Matter

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2.1 Matter

  1. 1. 2.1 What is matter? Pages 38 - 44
  2. 2. Goal 1 Distinguish between elements and compounds
  3. 3. <ul><li>Matter </li></ul><ul><ul><li>Has mass and volume </li></ul></ul><ul><ul><li>Made up of atoms </li></ul></ul><ul><ul><li>Examples: </li></ul></ul>
  4. 4. <ul><li>Not Matter </li></ul><ul><ul><li>No mass, no volume </li></ul></ul><ul><ul><li>Examples: Light, Sound, Electricity </li></ul></ul>
  5. 5. <ul><li>Atoms </li></ul><ul><ul><li>General name for the smallest particle that still has properties of an element </li></ul></ul><ul><ul><li>Composed of </li></ul></ul><ul><ul><ul><li>Protons </li></ul></ul></ul><ul><ul><ul><li>Neutrons </li></ul></ul></ul><ul><ul><ul><li>Electrons </li></ul></ul></ul>
  6. 6. <ul><li>Elements </li></ul><ul><ul><li>Atom with specific # of protons </li></ul></ul><ul><ul><li>Has a Name </li></ul></ul><ul><ul><ul><li>6 protons  Carbon </li></ul></ul></ul><ul><ul><ul><li>8 protons  Oxygen </li></ul></ul></ul>
  7. 7. <ul><li>Each element has its own properties </li></ul><ul><ul><li>Carbon  melting point 3550 °C </li></ul></ul><ul><ul><li>Oxygen  melting point -218°C </li></ul></ul><ul><ul><li>Hydrogen  melting point -259°C </li></ul></ul>
  8. 8. <ul><li>Compounds </li></ul><ul><ul><li>Two or more different elements chemically combined </li></ul></ul>
  9. 9. <ul><li>Compounds have own unique properties </li></ul><ul><ul><li>Oxygen  freezing point -218°C </li></ul></ul><ul><ul><li>Hydrogen  freezing point -259°C </li></ul></ul><ul><ul><li>H 2 O  freezing point 0°C </li></ul></ul>
  10. 10. <ul><li>Molecules </li></ul><ul><ul><li>Smallest unit of substance </li></ul></ul><ul><ul><li>Still retains properties of substance </li></ul></ul><ul><ul><li>Can be an element </li></ul></ul><ul><ul><li>Can be a compound </li></ul></ul>
  11. 11. Goal 2 Interpret and write chemical formulas
  12. 12. <ul><li>Capital letter </li></ul><ul><ul><li>Symbol that denotes an element always capitalized </li></ul></ul><ul><ul><li>O H C P F N </li></ul></ul><ul><ul><li>Na Cl Mg Be Li Si </li></ul></ul><ul><ul><li>NaCl HNO SiO </li></ul></ul>
  13. 13. <ul><li>Subscript </li></ul><ul><ul><li>Number of atoms of the element </li></ul></ul><ul><ul><li>Always after the symbol </li></ul></ul><ul><ul><li>O 2 H 2 </li></ul></ul><ul><ul><li>H 2 O HNO 3 CO 2 </li></ul></ul><ul><ul><li>C 6 H 12 O 6 </li></ul></ul>
  14. 14. <ul><li>Big number in front </li></ul><ul><ul><li>Number of molecules </li></ul></ul><ul><ul><ul><li>Elements </li></ul></ul></ul><ul><ul><ul><li>compounds </li></ul></ul></ul>5 H 2 O
  15. 15. <ul><li>How many molecules? ___ </li></ul><ul><li>How many H atoms total? ___ </li></ul><ul><li>How many O atoms total? ___ </li></ul>5 H 2 O
  16. 16. <ul><li>How many molecules? ___ </li></ul><ul><li>How many C atoms? ___ </li></ul><ul><li>How many H atoms? ___ </li></ul><ul><li>How many O atoms? ___ </li></ul>C 6 H 12 O 6
  17. 17. Goal 3 Categorize materials as pure substances or mixtures
  18. 18. <ul><li>Pure substances </li></ul><ul><ul><li>Fixed composition </li></ul></ul><ul><ul><li>Definite properties </li></ul></ul><ul><ul><li>Cannot by separated by physical actions </li></ul></ul><ul><ul><li>Elements </li></ul></ul><ul><ul><li>Compounds </li></ul></ul>
  19. 19. <ul><li>Pure substance examples </li></ul><ul><li>O H C </li></ul><ul><ul><li>H 2 O HNO 3 CO 2 </li></ul></ul><ul><ul><li>C 6 H 12 O 6 </li></ul></ul>
  20. 20. <ul><li>Mixtures </li></ul><ul><ul><li>Blend of 2 or more pure substances </li></ul></ul><ul><ul><li>All properties remain in mixture </li></ul></ul>
  21. 21. <ul><li>Mixture example: Grape juice </li></ul><ul><ul><li>Properties: wet, sweet, purple </li></ul></ul><ul><ul><li>Can separate by evaporation </li></ul></ul>
  22. 22. <ul><li>Heterogeneous mixture </li></ul><ul><ul><li>Not uniformly mixed </li></ul></ul><ul><ul><li>Can separate / settle apart </li></ul></ul><ul><ul><li>Example: orange juice with pulp </li></ul></ul>
  23. 23. <ul><li>Homogeneous mixture </li></ul><ul><ul><li>Uniformly mixed </li></ul></ul><ul><ul><li>Will not separate out or settle </li></ul></ul>
  24. 24. <ul><li>Miscible liquids </li></ul><ul><ul><li>Mixture of liquids that dissolve into each other </li></ul></ul><ul><ul><li>Evenly mixed </li></ul></ul><ul><ul><li>Cannot see the separate liquids </li></ul></ul>
  25. 25. <ul><li>Immiscible liquids </li></ul><ul><ul><li>Cannot dissolve into each other </li></ul></ul><ul><ul><li>Can distinguish separate liquids </li></ul></ul><ul><ul><li>Such as: Water and oil </li></ul></ul>

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