Chemistry In Our Lives Flashcards Preview

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Flashcards in Chemistry In Our Lives Deck (25):
1

Pharmacist

Takes doctors prescription
Dispenses medicine

2

Chemist

Manufactures medicine in a laboratory

3

Pharmacy

Building a pharmacist works in

4

Natural materials

Not made in a laboratory, naturally occurring
e.g. wool and water

5

Rubber

Naturally occurring plastic

6

Synthetic materials

Means artificial or man made
Made in laboratory
e.g. nylon (tights), polyester (shirt), polythene (plastic bags), glass and terylene (crease free clothes), acrylic (yarn), melamine (plastic plates)

7

Plastics

Group of materials, either synthetic or naturally occurring, that can be shaped when soft, and harden to retain the given shape

8

Plastics (synthetic)

Made from crude oil
Man made

9

Monomers

Simple hydrocarbons that are separated from crude oil

10

Polymers

Monomers react together to form chains

11

Polymerisation

The making of polymers

12

Polythene

Tough waxy plastic
Used around electric cables and plastic bags

13

Polystyrene

Used for packaging, drinking cups, insulating cavity walls in houses

14

PVC

Used for drains and pipes and the cladding in the walls of houses

15

Non biodegradable

Plastics that can't be broken down by living things such as bacteria and fungi in the soil

16

Advantages of plastics

Often lighter
May be cheaper
Easy to look after

17

Disadvantages of plastic

Non biodegradable
But if we recycle or reuse plastics this disadvantage is overcome

18

Fossil fuels

Formed from the remains of plants and animals that lived millions of years ago
e.g. Oil gas and coal

19

Hydrocarbons

Fossil fuels made mostly from hydrogen and carbon

20

Methane

Natural gas
CH4

21

Fossil fuels produce..

Carbon dioxide and water when burned

22

Sulphur dioxide is released when..

Burning fossil fuels (coal and oil) which contain sulphur compounds

23

Acid rain

Sulphur dioxide and rainwater combined (sulphuric acid) cause this
Kills fish, harmful to plants, erodes limestone buildings

24

Fuel

Substance that burns in oxygen to produce heat

25

Fire triangle

For a fire to happen you need:
Fuel
Heat
Oxygen
Put out by removing one of these or use water, sand or carbon dioxide