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Chapter 1
Ch 1
8
Chemistry
Undergraduate 1
09/19/2007

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Cards

Term
Homogeneous
Definition
Uniform throughout
Term
Heterogeneous
Definition
Vary in texture and appearance throughout any typical sample.
Term
Intensive Properties
Definition
Do not depend on the amount of the sample being examined. (Melting Point)
* useful for identifying substances
Term
Extensive Properties
Definition
Depend on the quantity ofthe substance.
Term
Volume
Definition
(length)cubed.
Term
Density
Definition
Amount of mass in a unit volume of the substance.
* D=M/V
Term
Dimensional Analysis
Definition
Carry units through all calculations.
-Units are multiplied together or divided into eachother.
* Makes sure teh answer yields the proper units.
Term
Conversion Factors
Definition
Fraction whose numerator and denominator are the same quantity expressed in different units.

Ex. (8.50in.) 2.54cm
------ = 21.6 cm.
1 in.
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