extracting metals from oxides

Question 1

why do we have to make alluminiun oxide into a electrolyte?

Answer 1

so the electrons are free to move

Question 2

what is the first step?

Answer 2

purify aluminium oxide

Question 3

what is second step

Answer 3

melt aluminium oxide we have to mix this with cryolite to reduce melting point of aluminium oxide

Question 4

what do we need for the electrolysis ?

Answer 4

a beaker and two electrodes which are made of carbon

Question 5

what do we do now ?

Answer 5

collect electrodes with a power source and a wire

Question 6

what will the oxygen 2- ions be attracted to ?

Answer 6

the anode and will transfer there two extra electrons to the anode

Question 7

what will they become ?

Answer 7

dischared and will pair to form oxygen molecule and float into air

Question 8

what will the electrons do?

Answer 8

electrons will go to cathode and will attract the positive ions and 3 electrons from cathode will be donated

Question 9

what will this form?

Answer 9

alumiun atoms which will fall to the bottom of the beaker as molten alluminiun metal

Question 10

what can we remember ?

Answer 10

oil rig, oxidation is loss, reduction is gain