Intensive/Extensive

There are two categories of physical properties:
1) Intensive
2) Extensive

Intensive
Intensive properties are properties that are independent of the amount of matter present.

Ex.

Color - your hair remains the same color after you cut it (decrease the amount of matter present)

DENSITY - density is a ratio and does not change if the state of matter remains the same

Odor - 1/2 of a lemon smells like a lemon, 1/4 of a lemon smells like a lemon

Boiling point - 100 mL of water will boil at 100 degrees F, 200 mL of water will boil at 100 degrees F

Freezing point - 100 mL of water will freeze at 0 degrees F, 200 mL of water will freeze at 0 degrees F

Extensive
Properties that depend on the amount of matter present.

Ex.

Measurements - if I cut a 6 inches straw in half (remove matter), it is no longer 6 inches

Mass - if I remove 5 g from a 10 g sample (remove matter), it no longer weighs 10 g

Volume - if I add 10 mL to a 5 mL (add matter), it no longer has a volume of 5 mL

Chemical and Physical Properties of Matter

There are two categories that properties of matter can be broken down into:
1) Physical
2) Chemical

Physical Properties
Any characteristic that you can observe without changing the substance that makes up the material
i.e. the appearance.

Ex.

• Shape
• Color
• State of matter
• Measurement
• Odor
• Magnetism - force of attraction or repulsion that acts at a distance (magnets)
• Conductivity - ability to carry an electrical charge
• Malleability - ability to be hammered into sheets
• Ductility - ability to be drawn into wire
• Melting point
• Boiling point
• DENSITY

Chemical Properties
Characteristics of a substance that tell if the substance can undergo a chemical change.

Ex.

• Combustibility - ability/readiness to combust
• Flammability - ability/readiness to catch fire
• Reactivity to air - reacts to exposure to air
• Reactivity to light - ex. photo film paper
• Acidity (pH)

Websites

This website has a brief review and quiz.
This website breaks down the differences in a chart. Very informative.
This website has great notes, quizzes, and worksheets.