electrolysis

Question 1

what is electrolysis used for

Answer 1

Extracting metals from compounds

Question 2

How do you extract Aluminium using electrolysis

Answer 2

You would extract the aluminium from its ore which is called Bauxite (AL2 O3) but you have to dissolve it in molten cryolite first

Question 3

why do you dissolve the aluminium in the molten cryolite

Answer 3

It lowers the boiling point of the aluminium

Question 4

what Ions are present in bauxite

Answer 4

Al+3 and 0+2

Question 5

what does OilRig stand for

Answer 5

Oxidation is loss and Reduction is gain

Question 6

does oxidation or reduction take place at the positive electrode?

Answer 6

Oxidation takes place because that’s where the ions go to loose electrons

Question 7

What ions are created during the electrolysis of solutions

Answer 7

H+, OH-, the metal and the gas

Question 8

which ions are discharged at the + electrode (cathode)

Answer 8

the ion that is lower down in the reactivity series will be discharged

Question 9

which ions are discharged at the - electrode (anode)

Answer 9

If there is a halide ( group seven element) then the halide will be discharged but if there isn’t, oxygen will be discharged

Question 10

why don’t compounds conduct electricity

Answer 10

IONS DON’T MOVE