matter: properties of matter
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Matter: Properties of Matter
Chapter 2 Section 2Pp 45-52
All Matter has PropertiesThere are two kinds of properties
in matter• Physical Properties • Chemical Properties
Physical PropertiesPhysical Properties identify a substance• They describe matter
You can use your senses to find physical properties • sometimes you need some equipment
to help!
Some Physical PropertiesColorSizeOdorHardnessShapeTemperature
Some Special Physical PropertiesBoiling Point – the temperature at which a liquid
becomes a gasMelting Point – the temperature at which a solid
becomes a liquidDensity – the ratio of the mass of a substance to the
volume of a substance• D = m/V• Density is equal to the mass divided by the Volume• Units – g/cm3
Boiling Points
Melting Points
Densities
Chemical PropertiesChemical properties describe how
a substance reacts• Reacts with what?• How much/fast does it react?
Some Special Chemical PropertiesReactivity – the ability of a substance
to combine chemically with another substance
Flammability – the ability of a substance to react in the presence of oxygen and burn when exposed to a flame
Flammability and Reactivity
Reac
tivity
Flam
mab
ility
Flammability and Reactivity
Reac
tivity
– So
dium
in W
ater
Flam
mab
ility
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