IES Manuel Cañadas
Physics and Chemistry 3º ESO
1.3.- TYPES OF MIXTURES
There are several types of mixtures. They are:
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solutions
suspensions
emulsions
colloidal dispersions
Solutions: are mixtures made by mixing a solute and a solvent. The solute is the substance that
dissolves. The solvent is the substance that does the dissolving. Solutions are homogeneous and do
not show the tyndall effect.
Suspensions: are heterogeneous mixtures of a solid and a
liquid in which the solid does not dissolve. Suspensions will
settle when left standing undisturbed. Suspensions will show
the tyndall effect.
Emulsions: are a special type of suspension. This mixture
consists of two liquids that do not mix. Since the liquids do not
mix, emulsions are heterogeneous. Emulsions will settle into
layers when they are left standing undisturbed. Emulsions will
show the tyndall effect.
Colloidal Dispersions: are mixtures with characteristics part
way between a solution and a suspension. Colloidal dispersions may appear homogeneous but are
actually heterogeneous. Colloidal dispersions do not settle when left standing undisturbed for a
period of time. Colloidal dispersions do show the tyndall
effect.
Examples:
Solutions
salt and water
Suspensions Emulsions
soil and water oil and vinegar
alcohol and water
sand and water kerosene and water
copper sulfate and water clay and water oil and water
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Colloidal dispersions
liquid laundry starch and water
fine pottery clay and water
mayonnaise
IES Manuel Cañadas
Physics and Chemistry 3º ESO
Vocabulary
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