Unit three JT

Question 1

What does Avogadro’s number represent

Answer 1

The number of particles in a mole

Question 2

Nitric acid

Answer 2

HNO3

Question 3

Sulfuric acid

Answer 3

H2SO3

Question 4

Hydrochloric acid

Answer 4

HCL

Question 5

Ethanoic acid

Answer 5

CH3COOH

Question 6

What do acids release when added to water

Answer 6

H+ ions

Question 7

Definition of an acid (1)

Answer 7

A proton donor

Question 8

Definition of an acid (2)

Answer 8

A substance with a pH of 1-6 that provides H+ ions

Question 9

Common metal oxides

Answer 9

MgO, CuO

Question 10

Common metal hydroxides

Answer 10

NaOH, Mg(OH)2, KOH

Question 11

Common metal carbonates

Answer 11

CaCO3, CuCO3

Question 12

Ammonia and amines

Answer 12

NH3, CH3NH2

Question 13

Definition of a base (1)

Answer 13

A proton acceptor

Question 14

Definition of a base (2)

Answer 14

Any substance with a pH of 8-14 that provides OH- ions

Question 15

Alkali definition

Answer 15

Soluble bases

Question 16

Sodium hydroxide (common alkali)

Answer 16

NaOH

Question 17

Potassium hydroxide (common alkali)

Answer 17

KOH

Question 18

Ammonia (common alkali)

Answer 18

NH3

Question 19

What do alkalis release into a solution

Answer 19

OH- ions

Question 20

Ionic equation for ammonia in water

Answer 20

NH3 + H20 ⇌ NH4+ +OH-

Question 21

What is an amphoteric substance

Answer 21

A substance that can behave as both an acid and a base

Question 22

How are amino acids amphoteric substances

Answer 22

They have a carboxyl group that is able to donate a proton and an amino group that is able to accept a proton
NH3-CH2-COOH

Question 23

OH- + H+ =

Answer 23

H20

Question 24

metal + acid =

Answer 24

salt + hydrogen

Question 25

metal hnydroxide/oxide + acid =

Answer 25

salt + water

Question 26

metal carbonate + acid =

Answer 26

salt + carbon dioxide + water

Question 27

ammonia + acid =

Answer 27

ammonium salt

Question 28

What salt does hydrochloric acid make

Answer 28

Chlorides

Question 29

What salt does sulfuric acid make

Answer 29

Sulfates

Question 30

What salt does nitric acid make

Answer 30

Nitrates

Question 31

What salt does ethanoic acid make

Answer 31

Ethanoates

Question 32

Zinc + hydrochloric acid

Answer 32

Zinc chloride + water

Question 33

Sodium Hydroxide + sulfuric acid

Answer 33

Sodium hydrogen sulfate + water

Question 34

Calcium hydroxide + hydrochloric acid

Answer 34

Calcium Chloride + water

Question 35

Calcium carbonate + nitric acid

Answer 35

Calcium nitrate + carbon dioxide + water

Question 36

Ammonia + sulfuric acid

Answer 36

Ammonium sulfate