Metals The Extraction Uses Properties

Question 1

metal ore

Answer 1

a rockwhich contains enough metal to make it profitable to extract the metal

Question 2

methods of extraction 3

Answer 2

reduction with carbon
electrolysis
displacement reactions

Question 3

Metals lower than carbon on the RS

Answer 3

less reactive than carbon

extracted from their oxides by reduction using carbon

Question 4

Metals higher than carbon in RS 2

Answer 4

more reactive than carbon

have to be extracted using electrolysis

Question 5

reduction with carbon 2

Answer 5

metal oxide reduced in a boat furnace to make a metal
metal oxide is less reactive than carbon so when the metal oxideand carbon react the oxygen is removed leaving just the metal

Question 6

copper extraction using carbon 3

Answer 6

smelting
copper produced is impure
electrolysis used to purify

Question 7

electrolyte 3

Answer 7

liquid to conduct the electricity
often metal salt solutions made from the pre
has free ions which conduct electricity

Question 8

purification of copper

Answer 8

positive Electrode made of impure copper electrons pulled off copper atoms at the positive electrode causing them to go into the solution as Cu2+ ions
Cu2+ions move towards the negative Electrode,gain electrons and turn back into copper atoms
impurities are dropped as sludge at the positive electrode

Question 9

extracting copper from low grade ores

Answer 9

bioleaching

phytomining

Question 10

bioleaching

Answer 10

using bacteria to separate copper from copper sulfide
bacteria get energy from the bond between copper and sulfur separating them in the process
lechate is the solution produced by the process contains the copper

Question 11

phytomining3

Answer 11

growing plants in soil that contains copper
plants can’t use of get rid of the copper so it builds up in their leaves
plants harvested and burned copper can be collected from their ashes

Question 12

pros of bio and phyto 4

Answer 12

cheap
much smaller environmental impact
require less energy
phyto is more carbon neutral

Question 13

extraction by displacement

Answer 13

if you put a reactive metal into a solunion of a dissolved metal compound the reactive metal will replace the less reactive metal in the compound

Question 14

negative impacts of metal extraction4

Answer 14

mining ores is bad for environment
increased traffic and noise
destroys habitats
takes alot of energy from burning fossil fuels

Question 15

properties and uses of copper

Answer 15

good conductor of electricity 
hard and strong 
also be bent
doesn't react with water 
good for plumbing pipes and electrical wires

Question 16

propertiez and uses of titanium4

Answer 16

low density metal
very strong
corrosion resistant
replacement hips

Question 17

properties and uses of aluminium 5

Answer 17

corrosion resistant 
 has a low density 
lightweight
forms hard alloys
aeroplanes

Question 18

alloy

Answer 18

mixture of two or more metals

Question 19

cast iron4

Answer 19

impure iron from the impurities created out the blast furnace
used for ornamental railings
can with stand being compressed
brittle

Question 20

conversion of pure iron to steel

Answer 20

steels are formed by adding small amounts of carbon to The iron

Question 21

low carbon steel

Answer 21

easily shaped

cat bodies

Question 22

high carbon steel3

Answer 22

very hard inflexible
blades for cutting tools
bridges

Question 23

stainless steel

Answer 23

corrosion resistant
cutlery
containers for corrosive substances

Question 24

bronze =

Answer 24

copper and tin

Question 25

cupronickel

Answer 25

copper and nickel