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Chemistry - Chap. 1


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Accuracy (p26)
The closeness of a measurement to the true value of the quantity that is measured.
Chemical Property (p14)
Any property of a substance that cannot be studied without converting the substance into some other substance.
Compound (p12)
A substance composed of atoms of two or more elements chemically united in fixed proportions.
Density (p15)
The mass of a substance divided by its volume.

d = m/V
Element (p12)
A substanece that cannotbe separated into simpler substances by chemical means.
Extensive Property (p15)
a property that matter on how much matter is being considered.
Heterogeneous Mixture (p11)
The individual components of a mixture remain physically separated and can be seen as separate components.
Homogeneous Mixture (p11)
The composition of a mixture, after sufficient stirring, is the same throughout the solution.
Intensive Property (p15)
A property that does not depend on how much matter is being considered.
Macroscopic Property (p15)
Properties that can be measured directly.
SI Base Units
Length - meter - m
Mass - kilogram - kg
Time - second - s
Electrical Current-ampere-A
Temp. - kelvin - K
Amt. of Substance-mole-mol
Luminous Intensity-candela-cd

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