Electrolysis

Question 1

What equipment is used in electrolysis?

Answer 1

Beaker
Electrodes
Wire to join electrodes
Power supply e.g battery

Question 2

What is an electrolyte

Answer 2

Liquid or solution containing an ionic compound

Question 3

Why is an electrolyte needed?

Answer 3

Ions need to be free to move

Question 4

Soluble compounds…

Answer 4

need to be dissolved in water

Question 5

Insoluble compounds…

Answer 5

need to be melted to make sure all ions are free to move

Question 6

What are electrodes made of?

Answer 6

Metal or Carbon

Question 7

What is the point of electrolysis and how does it work?

Answer 7

Splits up by electricity

Battery passes electric current through electrolyte

Negative ions attracted to positive Anode and will be discharged (turns from charged ion to neutral atom)

Positive ions attracted to negative Cathode and will be discharged

Question 8

Why is a wire needed?

Answer 8

So electrons can flow between electrodes