1 i) Electrolysis

Question 1

Electrolysis

Answer 1

Decomposition caused by passing an electric current through a compound that is either molten or in solution.

Question 2

Oxidation

Answer 2

Gain of oxygen or loss of electrons

Question 3

Redox

Answer 3

Reduction and oxidation

Question 4

Reduction

Answer 4

Loss of oxygen or gain of electrons

Question 5

Anode

Answer 5

Positive electrode

Question 6

Cathode

Answer 6

Negative electrode

Question 7

Discharged

Answer 7

When an ion loses its charge by losing or gaining electrons.

Question 8

Electrode

Answer 8

A conductor through which electricity is passed into and out of an electrolyte.

Question 9

Electrolyte

Answer 9

Liquid that undergoes electrolysis (molten ionic compounds or solutions containing ions).

Question 10

Half-equation

Answer 10

Balanced symbol equation to describe either oxidation or reduction.

Question 11

Molten

Answer 11

Liquid state when a solid has melted

Question 12

Spectator Ion

Answer 12

Ion that is not changed in a chemical reaction which is omitted when writing ionic equations.