Elctroylsus ?

Question 1

What is the first stage ?

Answer 1

Add 50ml3 of cooper (III) chloride solution to a beaker

Then place a plastic Petri dish over the beaker with two holes

Question 2

What is the second stage ?

Answer 2

Insert graphite rods into the holes ( these are the electrodes)

They are un reactive and must not touch as that will produce a short circuit

Question 3

What is the third stage ?

Answer 3

Connect the rods to a low voltage power supply with crocodile clips

We switch it on with 4.0 V

Question 4

What is the rule with the cathode ?

Answer 4

If the metal is less reactive than hydrogen it is discharged