properties & changes in matter extensive vs. intensive physical vs. chemical

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Properties & Changes in Matter Extensive vs. Intensive Physical vs. Chemical

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Properties & Changes in Matter Extensive vs. Intensive Physical vs. Chemical. Extensive vs. Intensive. Extensive Property depends on the amount of matter present Intensive Property depends on the identity of substance, not the amount. Extensive vs. Intensive. Examples: boiling point - PowerPoint PPT Presentation

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Page 1: Properties & Changes in Matter Extensive vs. Intensive Physical vs. Chemical

Properties & Changes in Matter

Extensive vs. Intensive

Physical vs. Chemical

Page 2: Properties & Changes in Matter Extensive vs. Intensive Physical vs. Chemical

Extensive vs. Intensive

Extensive Property

depends on the amount of matter present

Intensive Property

depends on the identity of substance, not the amount

Page 3: Properties & Changes in Matter Extensive vs. Intensive Physical vs. Chemical

Extensive vs. Intensive

Examples:

boiling point

volume

mass

density

conductivity

intensive

extensive

extensive

intensive

intensive

Page 4: Properties & Changes in Matter Extensive vs. Intensive Physical vs. Chemical

Physical vs. Chemical

Physical Property

can be observed and measured without changing the identity of the substance

Chemical Property

can be observed by changing the identity of the substance

Page 5: Properties & Changes in Matter Extensive vs. Intensive Physical vs. Chemical

Physical vs. Chemical

Examples:

melting point

flammable

density

magnetic

tarnishes in air

physical

chemical

physical

physical

chemical

Page 6: Properties & Changes in Matter Extensive vs. Intensive Physical vs. Chemical

Physical vs. Chemical

Physical Change

changes the appearance of a substance without changing its identity

properties remain the same

Chemical Change

changes the identity of a substance

products have different properties

Page 7: Properties & Changes in Matter Extensive vs. Intensive Physical vs. Chemical

Physical vs. Chemical

Signs of a Chemical Change

change in color or odor

formation of a gas (bubbling, fizzing)

formation of a precipitate (a solid that separates from solution)

change in light or heat

Page 8: Properties & Changes in Matter Extensive vs. Intensive Physical vs. Chemical

Physical vs. Chemical

Examples:

rusting iron

dissolving in water

burning a log

melting ice

grinding spices

chemical

physical

chemical

physical

physical

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