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Physical and Chemical Properties

Physical and Chemical Properties. Info from: http ://www.iun.edu/~cpanhd/C101webnotes/matter-and-energy/ properties.html. What are they?. Physical properties: Properties that do not change the chemical nature of matter

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Physical and Chemical Properties

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  1. Physical and Chemical Properties Info from: http://www.iun.edu/~cpanhd/C101webnotes/matter-and-energy/properties.html

  2. What are they? • Physical properties: Properties that do not change the chemical nature of matter • Chemical properties: Properties that do change the chemical nature of matter

  3. Some Examples of Physical Properties are • color, smell, freezing point, boiling point, melting point, infra-red spectrum, attraction (paramagnetic) or repulsion (diamagnetic) to magnets, opacity, viscosity and density. There are many more examples. Note that measuring each of these properties will not alter the basic nature of the substance.

  4. Examples of Chemical Properties are: • heat of combustion, reactivity with water, PH, and electromotive force.

  5. Why do we study the physical and chemical properties of matter • The more properties we can identify for a substance, the better we know the nature of that substance. These properties can then help us model the substance and thus understand how this substance will behave under various conditions.

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