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10 Cards in this Set

  • Front
  • Back
Alkanes
Hydrocarbons that contain only "single" bonds
The number of hydrogen molecules in a straight chain alkane
# of H = 2 x # of C + 2
Matter usually occurs as
mixtures
Heterogeneous Mixture
A mixture with visible boudaries between the components, and therefore does not have a uniform composition.
Homogeneous Mixture
Also known as a solution, it has no visible boundaries , and its composition is uniform. A mixture of sugar dissolved in water is homogeneous.
Mixtures are different from compounds in three major ways:
The proportions of the components can vary, The individual properties of the components are observable, and the components can be separated by physical means.
Filtration
Based on differences in particle size, and is often used to separate a solid from a liquid.
Crystallization
Based on differences in solubility.
Distillation
Separates components through volatility, the tendency of a substance to become a gas.
Chromatography
Also based on differences in solubility.