chapter 3 objectives
DESCRIPTION
Chapter 3 Objectives. OBJECTIVES. Describe how particles move in the 3 phases of matter. 2. Explain how, as temperature increases, particles move faster and farther apart, generally becoming less attracted to one another as temperature increases. . OBJECTIVES. - PowerPoint PPT PresentationTRANSCRIPT
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Chapter 3 Objectives
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OBJECTIVES
1. Describe how particles move in the 3 phases of matter.
2. Explain how, as temperature increases, particles move faster and farther apart, generally becoming less attracted to one another as temperature increases.
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OBJECTIVES
3. Explain how gases have neither a determined shape or a definite volume. They assume the shape and volume of a closed container.
4. Explain how liquids have a definite volume, but take the shape of their container.
5. Explain how solids have definite shapes and volumes.
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OBJECTIVES
6. Identify common phase changes. 7. Identify whether heat energy is absorbed or
released during a phase change.
Turn to p. 74 in textTurn to p. 6 in packet
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OBJECTIVES
8. Predict that water will expand when it freezes.
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OBJECTIVE S
9. Explain how temperature doesn’t change during phase changes.
10.Identify phase changes as examples of physical changes.
Turn to p. 78
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Phase Change diagram for Iron
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Question of the Day
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OBJECTIVES
10. Identify phase changes as examples of physical changes.
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OBJECTIVES
11.Explain how all matter is made of atoms.
12.Explain how there are more than 100 elements.
13. Define and give examples of elements.
Turn to page 90
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Elements
A pure substance made of only one type of atom
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The Periodic TablePeriodic Table of Elements
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Elements
Examples:
- Oxygen (O2)- Carbon- Hydrogen- Silver- Uranium
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Elements
Non-examples:
Water (H2O) Carbon dioxide (CO2) Air (a mixture- mostly nitrogen (78%) and oxygen
(20%) Steel (an alloy of carbon and iron) Fire Wood (a mixture)
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OBJECTIVES
14. Define and give examples of compounds.
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Compounds
Substances made of two or more different elements chemically combined
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WaterH2O
Compounds
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Sodium ChlorideNaCl
Compounds
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Sucrose (table sugar)C12H22O11
Compounds
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OctaneC8H18
Compounds
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EthanolC2H6O
Compounds
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CompoundsNon-examples
Air (a mixture) Eggs (a mixture) Flour (a mixture) O2 gas (still an
element)
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Objectives
15. Define and give examples of mixtures. 16. Distinguish between elements,
compounds and mixtures.
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Air
78% nitrogen gas (N2)20% oxygen gas (O2)1-6 % water vapor (H2O)<1% carbon dioxide (CO2)<1% other gases
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Flatulence
59% nitrogen gas (N2)21% hydrogen gas (H2)9% carbon dioxide (CO2)7% methane (CH4)4% oxygen gas (O2)<1% hydrogen sulfide (H2S)
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Objectives
17.Define and give examples of solutions.
18.Identify the solute and solvent of a solution.
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OBJECTIVES
19. Read and interpret line graphs, specifically, solubility curves.
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OBJECTIVES