S4.7.5 Glossary

Question 1

Anode

Answer 1

The positively charged electrode

Question 2

Cathode

Answer 2

The negatively charged electrode

Question 3

Displacement reaction

Answer 3

A more reactive element takes the place of a less reactive element

Question 4

Electrode

Answer 4

A conductor through which current enters or leaves a substance

Question 5

Electrolysis

Answer 5

The splitting of a compound using electricity

Question 6

Electrolyte

Answer 6

Molten or dissolved ionic compound

Question 7

Half equation

Answer 7

Equation which shows if an ion has gained or lost electrons

Question 8

Inert

Answer 8

Unreactive

Question 9

Ionic compound

Answer 9

A compound of metal and non-metal ions ionically bonded together

Question 10

Negative ion

Answer 10

An atom which has gained electrons to become negatively charged

Question 11

Oxidation

Answer 11

The loss of electrons, or gaining of oxygen

Question 12

Positive ion

Answer 12

An atom which has lost electrons to become positively charged

Question 13

Reduction

Answer 13

The gaining of electrons, or loss of oxygen