Electrolysis

Question 1

What are the different ways of doing:

Electrolysis

Answer 1

1. Molten
2. Aqueous
3. Other options do not work as opposite charges need to be free to move around for the current to complete the circuit

Question 2

What is a:

Non-electrolyte

Answer 2

Something that does not conuct electricity such as covalent substances

Question 3

How many:

Electrolytes in a circuit, what are they called and negative/positive

Answer 3

• 2 electrolytes
• Cathode and anode
• Negative, positive
• Reduction, oxidisation

Question 4

What happens in:

Electrolysis

Answer 4

Ions in the elctrolyte move to the electrode where they either lose or gain electrons to become elements and are discharged

Question 5

Rules of:

Electrolysis

Answer 5

• If the electrolyte is molten the positive metal ion is discharged at the cathode and the negative non-metal ion is discharged at the anode
• If the elctrolyte is in solution then group 1 or 2 metal converts to hydrogen
• The product at the anode is either oxygen or a halogen, families gets converted to oxygen

Question 6

What is:

Electrolysis

Answer 6

• The break-down of a substance by electricity
• The way highly reactive metals are extracted from their compounds
• Electrolytes are substances that don’t conduct electricity when solid but when molten or dissolved in water

Question 7

What is produced when reacting:

Brine

Answer 7

Reactants at cathode and anode, hydrogen and hydroxide

Question 8

What is a:

Faraday

Answer 8

96500 coulombs, 1 mole of electrons.