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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 Presentation
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Chapter 3 Objectives
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.
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.
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
OBJECTIVES
8. Predict that water will expand when it freezes.
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
Phase Change diagram for Iron
Question of the Day
OBJECTIVES
10. Identify phase changes as examples of physical changes.
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
Elements
A pure substance made of only one type of atom
The Periodic TablePeriodic Table of Elements
Elements
Examples:
- Oxygen (O2)- Carbon- Hydrogen- Silver- Uranium
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)
OBJECTIVES
14. Define and give examples of compounds.
Compounds
Substances made of two or more different elements chemically combined
WaterH2O
Compounds
Sodium ChlorideNaCl
Compounds
Sucrose (table sugar)C12H22O11
Compounds
OctaneC8H18
Compounds
EthanolC2H6O
Compounds
CompoundsNon-examples
Air (a mixture) Eggs (a mixture) Flour (a mixture) O2 gas (still an
element)
Objectives
15. Define and give examples of mixtures. 16. Distinguish between elements,
compounds and mixtures.
Air
78% nitrogen gas (N2)20% oxygen gas (O2)1-6 % water vapor (H2O)<1% carbon dioxide (CO2)<1% other gases
Flatulence
59% nitrogen gas (N2)21% hydrogen gas (H2)9% carbon dioxide (CO2)7% methane (CH4)4% oxygen gas (O2)<1% hydrogen sulfide (H2S)
Objectives
17.Define and give examples of solutions.
18.Identify the solute and solvent of a solution.
OBJECTIVES
19. Read and interpret line graphs, specifically, solubility curves.
OBJECTIVES
