Extraction Of Metals/ Reactivity Series

Question 1

How is copper extracted from phytomining-

Answer 1

Grow plants on lands containing copper ores
Burn these plants to receive the ashes
Dissolve the ash in sulphuric acid to produce a solution of a copper compound.
Then you treat the ash which contains sulphuric acid with copper to produce copper sulphate.
Scrap iron will be used to displace the copper sulfate solution by displacement reaction.

Question 2

State the reactivity series-

Answer 2

Potassium
Sodium
Lithium
Calcium
Magnesium
Aluminum
Carbon
Zinc
Iron
Tin
Leads
Copper
Sliver
Gold

Question 3

How can metals be extracted from carbon- how can iron be extracted?

Answer 3

Metals that are less reactive than carbon can be extracted from their oxides by reduction with carbon.
Iron oxide can be reduced in the blast furnace to make iron

Question 4

Phytomining has not been widely used to extract copper, why?

Answer 4

PM takes a long time, and lands are not available

Question 5

What is the purpose of limestone in the blast furnace?

Answer 5

To remove impurities from iron

Question 6

State one advantage and one disadvantage of recycling metals-

Answer 6

Adv-
Saves natural habitats and woodlands
Dis-
Difficult to recycle some metals since theyre in alloy form

Question 7

Do all transition metals for 2+ ions? Why?

Answer 7

Yes mostly, because some need to lose 2 electrons so they would have a positive ion