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Chemistry > Chemistry In Our Lives > Flashcards

Chemistry In Our Lives Flashcards

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0
Q

Chemist

A

A chemist is a person who actually manufactures medicine in the laboratory.

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1
Q

Pharmacist

A

Take a doctor’s prescription. He/she also dispenses the medicine.

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2
Q

Pharmacy

A

A pharmacy is the building a pharmacist works in.

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3
Q

Rubber

A

Rubber is a naturally occurring plastic.

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4
Q

Natural materials

A

Wool, water, crude oil, cotton and fur.

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5
Q

Synthetic materials

A

Artificial or man-made.

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6
Q

Examples of synthetic:

A

Nylon (tights), polyester (shirt), polythene (plastic bags), glass, terylene (crease free clothes), acrylic (yarn) and melamine (plastic plates).

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7
Q

Plastics are made from

A

Crude oil.

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8
Q

Fossil fuels

A

Are formed from the remains of plants and animals that lived millions of years ago.

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9
Q

Hydrocarbons

A

All fossil fuels are made mainly of the elements hydrogen and carbon and so are called hydrocarbons.

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10
Q

Methane

A

Natural gas is mainly methane (CH4).

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11
Q

Fossil fuels produce

A

Carbon dioxide (CO2) and water (H2O) when burned.

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12
Q

The gas sulphur dioxide (SO2) is released

A

On fossil fuels (coal and oil) which contain sulphur compounds.

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13
Q

Acid rain

A

Sulphur dioxide combines with rainwater to form sulphuric acid, causing acid rain.

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14
Q

Acid rain harm:

A

Kills fish, is harmful to plants and erodes limestone buildings.

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15
Q

Fuel

A

A substance that burns in oxygen to produce heat.

16
Q

Fire Triangle: For a fire to happen, you need…

A

Fuel, heat and oxygen.

17
Q

Polythene

A

Tough waxy plastic used around electric cables and for plastic bags.

18
Q

Polystyrene

A

Packaging, for drink cups and also for insulation in cavity walls of houses.

19
Q

PVC

A

Drains and pipes and the cladding on the walls of houses.

20
Q

Plastics are made from

A

Chemicals called monomers, which are taken from the crude oil.

21
Q

The monomers react

A

Together to make long chains of molecules called polymers, which then behave like plastics.

Chemistry (4 decks)

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