summary for chemistry unit 1a

HideShow resource information
what is the symbol equation showing the thermal decomposition of limestone
CaCO ---> CaO + CO2
1 of 13
what is calcium hydroxide used for
to neutralise acidic soil and can be used in a test for carbon dioxide
2 of 13
what is the name of the method where plants are used to extract metals from soil
phytomining
3 of 13
what is the definition of an ore
a rock which contains enough metal to make it worthwhile extracting metal from it
4 of 13
what are the symbols for a) calcium b) carbon c)sodium
a) Ca b) C c) Na
5 of 13
name three building materials made from limestone
cement, mortar and concrete
6 of 13
give a reason why aluminium is an expensive metal
a high temperature is needed to melt aluminium oxide so more energy is needed which is expenisve
7 of 13
what is the problem with using very pure iron
it becomes too soft and bendy
8 of 13
what does crude oil consist of
a mixture of hydrocarbons
9 of 13
is a short chain hydrocarbon more viscous (thick and gloopy) than a long chain hydrocarbon
no it is more runny
10 of 13
name three pollutants released into the atmosphere when fuels are burned
methane, sulphur dioxide, carbon dioxide
11 of 13
what products are produced when limestone reacts with sulphuric acid
calcium sulphate + carbon dioxide+water
12 of 13
name three properties of metals
any three of: strong, bendy, good conductorsof heat, good conductors of electricity
13 of 13

Other cards in this set

Card 2

Front

what is calcium hydroxide used for

Back

to neutralise acidic soil and can be used in a test for carbon dioxide

Card 3

Front

what is the name of the method where plants are used to extract metals from soil

Back

Preview of the front of card 3

Card 4

Front

what is the definition of an ore

Back

Preview of the front of card 4

Card 5

Front

what are the symbols for a) calcium b) carbon c)sodium

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all summary of chemistry unit 1a resources »