chemistry revision

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what is a polymer?
a substance which has a molecular structure built up or completely from a large number of similar units bonded together, e.g. many synthetic organic materials used as plastics and resins.
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what is nanoscience?
the study of objects, phenomena, etc., on the nanometre scale.
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3 examples of giant covalent substances
graphite, diamond, silica
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what is graphene?
Graphite is soft and slippery because there are only weak intermolecular forces between its layers. Graphite is a good conductor of heat and electricity. This is because, like metals, graphite contains delocalised electrons.
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what are fullerenes?
he fullerenes are a large class of allotropes of carbon and are made of balls, ‘cages’ or tubes of carbon atoms. Its molecules have 60 carbon atoms arranged in a hollow sphere.
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Other cards in this set

Card 2

Front

what is nanoscience?

Back

the study of objects, phenomena, etc., on the nanometre scale.

Card 3

Front

3 examples of giant covalent substances

Back

Preview of the front of card 3

Card 4

Front

what is graphene?

Back

Preview of the front of card 4

Card 5

Front

what are fullerenes?

Back

Preview of the front of card 5

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