Electrolysis

Question 1

What state of ionic compounds do not conduct electricity (E Ch)

Answer 1

Solid ionic compounds do not conduct electricity.

Question 2

Why can’t solid ionic compounds conduct electricity? (E Ch)

Answer 2

The ions are locked in place and are not free to move because of the strong electrostatic forces of attraction.

Question 3

What processes allow the ionic compounds to conduct electricity and why? (E Ch)

Answer 3

Melting and dissolving in water, the forces of attraction are broken and the ions are free to move so can now conduct electricity these are called Electrolytes.

Question 4

What is an Electrolyte? (E Ch)

Answer 4

A substance that breaks up into ions (particles with electrical charges) when it is dissolved in water or body fluids. These ion can carry a change (electricity)

Question 5

Which ions occur from melting the solid ionic compound (lead bromide PbBr)? (E Ch)

Answer 5

• Pb two plus
• Br minus

Question 6

What are the two electrodes’ material used in the experiment for electrolysis? (E Ch)

Answer 6

Graphite or metal because it is a conducting material

Question 7

What is the negative electrode called? (E Ch)

Answer 7

Cathode (PANIC)

Question 8

What is the positive electrode called? (E Ch)

Answer 8

Anode

Question 9

What is the Anode and Cathode covered in? (E Ch)

Answer 9

Cathode - electrons
Anode - lack of electrons

Question 10

What happens on the electrodes? (E Ch)

Answer 10

The ions that have been attracted to the oppositely charged electrode will gain or lose some of those electrons on the conducting material that is coming from the power bank. These ions will them become atoms. Positive ions gain electrons and Negative ions lose electrons.