Presentation Transcript
Section 3.2—Properties of Matter :Section 3.2—Properties of Matter What properties are useful or not useful in an airbag?
Physical versus Chemical Properties :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)
Intensive and Extensive Properties :Intensive and Extensive Properties Extensive Property Intensive Property Size of the sample doesn’t matter—you’d say a big piece and a small piece were the same with respect to this property Size of the sample does matter—a big piece and a small piece would be different with respect to this property
Let’s Practice :Let’s Practice Example:
Are the following properties are physical or chemical? Flammability
Boiling point
Solubility
Malleability
Reactivity with oxygen
Let’s Practice :Let’s Practice Chemical
Physical
Physical
Physical
Chemical Flammability
Boiling point
Solubility
Malleability
Reactivity with oxygen Example:
Are the following properties are physical or chemical?
Let’s Practice :Let’s Practice Example:
Are the following properties are intensive or extensive? Mass
Volume
Color
Flammability
Texture
Let’s Practice :Let’s Practice Extensive
Extensive
Intensive
Intensive
Intensive Mass
Volume
Color
Flammability
Texture Example:
Are the following properties are intensive or extensive?
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