Definitions 3

Question 1

Weak acid

Answer 1

An acid that only ionises partially in an aqueous solution.

Question 2

Dissociation

Answer 2

The splitting of an ionic compound into its ions.

Question 3

Strong base

Answer 3

A base that dissociates completely in an aqueous solution

Question 4

Weak base

Answer 4

A base that only dissociates partially in an aqueous solution.

Question 5

Amphoteric substance

Answer 5

A substance that can act as either an acid or a base

Question 6

Neutralisation (equivalence point)

Answer 6

The point where an acid and base have reacted so neither is in excess

Question 7

Salt

Answer 7

A substance in which the hydrogen of an acid has been replaced by cation

Question 8

Hydrolysis of salt

Answer 8

A reaction of an ion with water

Question 9

Standard solution

Answer 9

A solution of known concentration

Question 10

Redox reaction

Answer 10

A reaction involving the transfer of electrons

Question 11

Oxidation

Answer 11

The loss of electrons

Question 12

Reduction

Answer 12

The gain of electrons

Question 13

Oxidising agent

Answer 13

A substance that accepts electrons

Question 14

Reducing agent

Answer 14

A substance that donates electrons

Question 15

Anode

Answer 15

The electrode where oxidation takes place

Question 16

Cathode

Answer 16

The electrode where reduction takes place

Question 17

Electrolyte

Answer 17

A substance that can conduct electricity by forming free ions when molten or dissolved in solution.