Section 3.2

1
Section 3.2Properties of Matter
What properties are useful or not useful in an
airbag?
2
Physical versus Chemical Properties
Chemical Property
Physical Property
Can be observed or tested without changing the
atoms or molecules
In the process of observing or testing, the atoms
or molecules are changed into different
substance(s)
3
Intensive and Extensive Properties
Extensive Property
Intensive Property
Size of the sample doesnt matteryoud say a big
piece and a small piece were the same with
respect to this property
Size of the sample does mattera big piece and a
small piece would be different with respect to
this property
4
Lets Practice
Flammability Boiling point Solubility Malleability
Reactivity with oxygen
Example Are the following properties are
physical or chemical?
5
Lets Practice
Flammability Boiling point Solubility Malleability
Reactivity with oxygen
Chemical Physical Physical Physical Chemical
Example Are the following properties are
physical or chemical?
6
Lets Practice
Mass Volume Color Flammability Texture
Example Are the following properties are
intensive or extensive?
7
Lets Practice
Mass Volume Color Flammability Texture
Extensive Extensive Intensive Intensive Intensive
Example Are the following properties are
intensive or extensive?