Properties%20of%20Matter

1
Properties of Matter

• Glencoe Ch. 18 Section 2
• Pages 560-567

2
Physical properties

• Characteristics observable and measured without a
  change in chemical composition of the substance

3
Physical properties

• 1. Shape
• 2. Color
• 3. Odor
• 4. Texture
• 5. Strength

4
Physical properties

• 6. Hardness
• 7. Melting point
• 8. Boiling point
• 9. Heat
• 10. Magnetism

5
Physical properties

• 11. Ability to conduct electricity
• 12. Buoyancy tendency of a less dense substance
  to rise and float
• 13. Density mass per unit of volume
• ? Light vs. Heavy

6
Physical properties

• Properties determine uses
• Properties remain constant for a specific pure
  substance

7
B. Chemical properties

• The way a substance reacts with others to form
  new substances with different properties
• Chemical properties are related to the specific
  elements that make up a compound

8
B. Chemical properties

• 1. Reactivity ability of a substance
• to combine chemically with
• another substance

9
B. Chemical properties

• 2. Flammability ability of a
• substance to burn

10
II. Chemical and Physical Changes

• A. Chemical Change change in
• composition by forming one or
• more new substances
• Examples
• a. Oxygen we breathe into carbon dioxide
• b. Gasoline burning into heat, light, water,
• carbon monoxide, etc.

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Signs of Chemical Changes

• 1. Production of Gas
• ? Bubbles but not boiling
• ? Gas from decomposition
• 2. Change of color
• ? Not like painting a wall
• 3. Production of a solid without cooling
• 4. Change in Temperature
• ? On its own without you heating or
• cooling it

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II. Chemical and Physical Changes

• B. Physical Change change in
• appearance but not in composition
• Examples
• a. Grinding d. Freezing
• b. Crushing e. Dissolving
• c. Melting