Unit 1- Electrolysis Flashcards
0
Q
What happens during electrolysis?
A
Ionic substances are broken down
1
Q
How are metals more reactive than carbon extracted?
A
Using electrolysis of molten compounds
2
Q
What is cheaper: carbon reduction or electrolysis?
A
Electrolysis is more expensive
3
Q
Describe the process of electrolysis. (4)
A
- Liquid is used to conduct electricity
- Electrolytes are metal salt solutions(from ore)/molten metal oxides
- Electrolyte has free ions which conduct electricity
- Electrons are taken away by the (+ve) anode and given away by the (-ve) cathode
4
Q
What happens as the ions lose/gain electrons?
A
They become atoms or molecules and are released
