Ch.4 - Acids and Redox

Question 1

Hydrochloric acid

Answer 1

HCl

Question 2

Sulphuric acid

Answer 2

H2SO4

Question 3

Ethanoic acid

Answer 3

CH3COOH

Question 4

Nitric acid

Answer 4

HNO3

Question 5

Acids

Answer 5

Release H+ ions (protons) in aqueous solution

Question 6

Strong acids

Answer 6

Fully dissociate in aqueous solution

Question 7

Bases

Answer 7

Neutralise an acid to form a salt

Question 8

Alkali

Answer 8

Bases that dissolve in water and releases OH- ions in aqueous solution

Question 9

Group 1 metal hydroxides

Answer 9

-Soluble in water and can form alkalis

Question 10

Sodium hydroxide (base)

Answer 10

NaOH

Question 11

Ammonia (base)

Answer 11

NH3

Question 12

Alkali + Acid->

Answer 12

Salt + Water

Question 13

Neutralisation equation

Answer 13

OH- (aq) + H+ (aq) -> H2O (l)

Question 14

Weak acids

Answer 14

Partially dissociate in aqueous solution

Question 15

Potassium hydroxide (base)

Answer 15

KOH

Question 16

Oxidation (O2)

Answer 16

Gain of oxidation

Question 17

Redox reactions

Answer 17

a reaction where reduction and oxidation occur

Question 18

Reduction (O2)

Answer 18

Loss of oxygen

Question 19

Spectator ions

Answer 19

Ions that do not change

Question 20

Reduction (e-)

Answer 20

Gaining electrons
Oxidation number goes down

Question 21

Oxidation (e-)

Answer 21

Losing electrons
Oxidation number goes up

Question 22

Oxidising agent

Answer 22

The species accepting the electrons
i.e it is reduced

Question 23

Reducing agent

Answer 23

The species donating the electrons
i.e it is oxidised