Acids & Bases

Question 1

Define an acid

Answer 1

a proton donor

Question 2

Define a base

Answer 2

proton acceptor

Question 3

Define ionisation

Answer 3

the reaction of a molecular substance with water to produce ions

Question 4

Define a strong acid

Answer 4

an acid that ionises almost completely in an aqueous solution

Question 5

Define a weak acid

Answer 5

an acid that only ionises partially in an aqueous solution

Question 6

Define dissociation

Answer 6

the splitting of an ionic compound into its ions

Question 7

Define a strong base

Answer 7

a base that dissociates almost completely in an aqueous solution

Question 8

Define a weak base

Answer 8

a base that only ionises partially in an aqueous solution

Question 9

Define an amphoteric (or amphiprotic) substance

Answer 9

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

Question 10

Define a salt

Answer 10

a substance in which the hydrogen of an acid has been replaced by a cation

Question 11

Define hydrolysis of a salt

Answer 11

a reaction of an ion (from a salt) with water

Question 12

Define neutralisation

Answer 12

a chemical reaction in which an acid and a base react so that neither is in excess