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Chemistry
Mixtures
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Created by
Andreea Andreea
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Cards (9)
Mixtures
Lots of
separate
things all
mixed
together
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Mixtures are
Easily
Separated-Not Like
Compounds
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Mixtures
Contain at least
two
different elements or
compounds
There aren't any
chemical bonds
between the different
parts
of a mixture
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Mixtures
Air
(a mixture of gases, mainly nitrogen, oxygen, carbon dioxide and argon)
Crude oil
(a mixture of different length hydrocarbon molecules)
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Methods
to separate mixtures
1.
Filtration
2.
Crystallisation
3.
Simple
distillation
4.
Fractional
distillation
5.
Chromatography
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The methods to separate mixtures are all
physical
methods
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This means they don't involve any
chemical reactions
, and don't form any new
substances
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Properties
of a mixture
Just a mixture of the
properties
of the
separate
parts
The chemical
properties
of a
substance
aren't changed by it being part of a mixture
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Mixture
of iron powder and sulfur powder
Will show the
properties
of both iron and sulfur
Will contain
grey
magnetic bits of iron and
bright yellow
bits of sulfur
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