Year 9 Acids And Alkalis

Question 1

What’s the chemical formula for Hydrochloric acid ?

Answer 1

HCl -> H+ + Cl-

Question 2

What’s the chemical formula for sulfuric acid ?

Answer 2

H2 SO4 -> 2H+ + SO4^2-

Question 3

What’s the chemical formula for nitric acid ?

Answer 3

HNO3 -> H+ + NO3-

Question 4

What’s the chemical formula for sodium hydroxide?

Answer 4

NaOH -> Na+ + OH-

Question 5

What’s the chemical equation for making water ?

Answer 5

H+ + OH- = H2O

Question 6

List the reactivity series 1-5

Answer 6

Magnesium, zinc, iron, lead, copper

Question 7

How many electrons in the outside shell does lead have ?

Answer 7

2

Question 8

How many electrons in the outside shell does iron have ?

Answer 8

2

Question 9

How many electrons in the outside shell does copper have ?

Answer 9

2

Question 10

How many electrons in the outside shell does zinc have ?

Answer 10

2

Question 11

How many shells does lead have ?

Answer 11

6

Question 12

How many shells does iron have ?

Answer 12

4

Question 13

How many shells does magnesium have ?

Answer 13

3

Question 14

How many shells does copper have ?

Answer 14

4

Question 15

How many shells does zinc have ?

Answer 15

4

Question 16

What ions do acids contain ?

Answer 16

Hydrogen

Question 17

What ions do alkalis contain ?

Answer 17

Hydroxide

Question 18

What is a sign of an acid reacting with a base ?

Answer 18

Bubbling/fizzing (hydrogen)

Question 19

Acid + metal = ?

Answer 19

Salt + hydrogen

Question 20

Acid + alkali = ?

Answer 20

Salt + water

Question 21

Acid + metal carbonate = ?

Answer 21

Salt + water + carbon dioxide

Question 22

Hydrochloric acid + sodium = ?

Answer 22

Sodium chloride + hydrogen

Question 23

Sulfuric acid + potassium hydroxide =?

Answer 23

Water + potassium sulfate

Question 24

What’s a salt ?

Answer 24

Contains chemically bonded metals and non-metal

Question 25

Ammonia + acid = ?

Answer 25

Ammonium salt

Question 26

Iron + Hydrochloric acid = ?

Answer 26

Iron chloride + hydrogen

Question 27

Zinc carbonate + sulfuric acid = ?

Answer 27

Zinc sulfate + water + Carbon dioxide

Question 28

Sulfuric acid + ammonia = ?

Answer 28

Ammonium sulfate + hydrogen

Question 29

Calcium hydroxide + citric acid = ?

Answer 29

Calcium citrate + water

Question 30

Silver oxide + ethanoic acid = ?

Answer 30

Silver ethanoate + water

Question 31

Zinc hydroxide + Hydrochloric acid = ?

Answer 31

Zinc chloride + water

Question 32

Copper carbonate + phosphoric acid = ?

Answer 32

Copper phosphate + water + carbon dioxide

Question 33

What’s a base ?

Answer 33

Makes a salt when reacted with an acid.

Question 34

What’s an alkali ?

Answer 34

Dissolves in water

Question 35

Not all bases are … but all … are bases

Answer 35

Alkalis