ELECTROLYSIS REACTIONS

Question 1

What is a redox reaction?

Answer 1

When a substance loses or gains oxygen

Question 2

If oxygen is gained are electrons lost or gained?

Answer 2

electrons are being lost

Question 3

If oxygen is lost are electrons lost or gained

Answer 3

electrons are being gained

Question 4

Explain what happens at the negative cathode during molten electrolysis?

Answer 4

It attracts positive cations and reduction occurs and a metal is formed.

Question 5

Explain what happens at the positive anode during molten electrolysis?

Answer 5

It attracts negative anions, oxidation occurs and a non metal covalent molecule is produced.

Question 6

In electrolysis of solutions what are the only three metals that can beat hydrogen to the cathode?

Answer 6

Copper, silver, gold

Question 7

In electrolysis of solutions what are the three ions that can beat hydroxide ions to the anode?

Answer 7

Bromine, iodine, chlorine.