Electrolysis

Question 1

Define electrolysis

Answer 1

The process in which ionic substances are decomposed into simpler substances when current is passed through them

Question 2

What are the cathode and anode ?

Answer 2

Cathode - negative electrode

Anode - positive electrode

Question 3

When ions receive electrons they are …..

Answer 3

Reduced

Question 4

What is electro plating and why is it useful ?

Answer 4

• covering a cheaper metal with a more expensive one e.g copper and silver

Question 5

What is current ?

Answer 5

The flow of electrons or ions

Question 6

How to set up an electroplating experiment ?

Answer 6

The negative electrode should be made out of the object that wants to be plated
The positive electrode should be made of metal you want to coat the object with
The electrolyte should be a solution of the coating metal