1. Properties of Matter 2.1 Matter has observable properties. 2.2
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Properties of Matter
the BIG idea
Matter has properties that can be changed by physical and chemical processes.
2.1
Matter has observable properties.
2.2
Changes of state are physical changes.
2.3
Properties are used to identify substances.
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2. Matter has observable properties.
2.1
Matter has observable properties.
• Physical properties can be observed without changing the substance.
physical property
• Physical changes can change some physical properties but do not change the substance.
density
physical change
chemical property
chemical change
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SECTION
OUTLINE

3. Matter has observable properties.
2.1
Matter has observable properties.
• Physical properties can be observed without changing the substance.
physical property
• Physical changes can change some physical properties but do not change the substance.
density
physical change
• Chemical properties describe how substances form new substances.
chemical property
• Chemical changes create new substances.
chemical change
VISUALIZATION
See how materials can go through physical and chemical changes.
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4. Changes of states are physical changes.
2.2
Changes of states are physical changes.
Matter is commonly found in three states: solid, liquid, and gas.
melting
melting point
freezing
freezing
freezing point
Solid
Liquid
evaporation
melting
sublimation
boiling
condensation
boiling point
condensation
Liquid
Gas
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evaporation, boiling
SECTION
OUTLINE

5. Properties are used to identify substances.
2.3
Properties are used to identify substances.
Physical properties that can be used to identify substances include:
• density
• heating properties
• solubility
• electric properties
• magnetic properties
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Mixtures can be separated by using the properties of the substances they contain.
SECTION
OUTLINE

6. 2.1 Matter has observable properties.
I. Matter has observable properties.
physical property
A. Physical properties describe a substance.
density
1. Physical Properties
physical change
2. Density
chemical property
3. Physical Changes
chemical change
B. Chemical properties describe how substances form new substances.
1. Chemical Properties and Changes
2. Signs of a Chemical Change
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KEY CONCEPT
SUMMARY

7. Changes of states are physical changes.
2.2
Changes of states are physical changes.
II. Changes of states are physical changes.
melting
A. Matter can change from one state to another.
melting point
B. Solids can become liquids, and liquids can become solids.
freezing
freezing point
1. Melting
evaporation
2. Freezing
sublimation
C. Liquids can become gases, and gases can become liquids.
boiling
boiling point
1. Evaporation
condensation
2. Boiling
CHAPTER
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3. Condensation
KEY CONCEPT
SUMMARY

8. Properties are used to identify substances.
2.3
Properties are used to identify substances.
III. Properties are used to identify substances.
A. Substances have characteristic properties.
1. Identifying Unknown Substances
2. Properties Used for Identifying
Substances
B. Mixtures can be separated by using the properties of the substances in them.
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KEY CONCEPT
SUMMARY

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