Year 8 Science | Metals and Non Metals

Question 1

What are the typical properties of metals?

Answer 1

shiny, strong, high melting point, conduct electricity, malleable, ductile

Question 2

Give 4 properties of non-metals

Answer 2

Low melting point, Poor thermal and electrical conductors, Brittle

Question 3

Metals are ‘malleable’. What does this mean?

Answer 3

They can be hammered into shape

Question 4

Are all metals magnetic?

Answer 4

no; iron, nickel and cobalt are

Question 5

Where are metals found on the Periodic Table?

Answer 5

To the left of the step line

Question 6

Are most elements metals or non-metals?

Answer 6

Metals

Question 7

What is an oxidation reaction?

Answer 7

A substance combining with oxygen

Question 8

Is a non-metal oxide acidic or basic?

Answer 8

acidic

Question 9

Is a metal oxide acidic or basic

Answer 9

basic

Question 10

Define “reactant”

Answer 10

Substances that react together

Question 11

Define “product”

Answer 11

Substances made in a reaction

Question 12

Finish the word equation: carbon + oxygen –>

Answer 12

carbon dioxide (or monoxide if low on oxygen)

Question 13

Finish the word equation: sulphur + oxygen –>

Answer 13

sulphur dioxide (causes acid rain)

Question 14

Which gas is produced when a metal reacts with acid?

Answer 14

Hydrogen

Question 15

What is the general equation for a metal-acid reaction?

Answer 15

Metal + acid -> salt + hydrogen

Question 16

What is observed when a metal reacts with acid?

Answer 16

Bubbles in the solution (gas given off)

Question 17

How can we compare reactivity of metals?

Answer 17

Compare how vigorous/strong the reaction is e.g. lots of bubbles

Question 18

If a salt contains two elements only, what ending is given to the name? (extension only)

Answer 18

“-ide”

Question 19

If a salt contains more than two elements (including oxygen), what ending is given to the name? (extension only)

Answer 19

“-ate”

Question 20

Which salt type is produced hydrochloric acid reacts?

Answer 20

Metal chloride

Question 21

Which salt type is produced when sulphuric acid reacts?

Answer 21

Metal sulphate

Question 22

Which salt is produced when nitric acid is used to make it?

Answer 22

Metal nitrate

Question 23

What is the state symbol for a solid?

Answer 23

(s)

Question 24

What is the state symbol for a liquid?

Answer 24

(l)

Question 25

What is the state symbol for a gas?

Answer 25

(g)

Question 26

What is the state symbol for a solution?

Answer 26

(aq) = aqueous

Question 27

What is the general equation for a metal oxidation reaction?

Answer 27

Metal + oxygen -> metal oxide

Question 28

Name a metal that does not react quickly with oxygen

Answer 28

Copper, iron, gold, silver

Question 29

Why do gold and silver stay shiny?

Answer 29

They don’t react with oxygen

Question 30

What is the general equation for a metal-water reaction

Answer 30

metal + water -> metal hydroxide + hydrogen

Question 31

What is observed when a metal reacts with water

Answer 31

bubbles (from the hydrogen gas)

Question 32

Describe the reaction of potassium with water

Answer 32

Produces hydrogen, heat and a lilac flame

Question 33

Which metal will produce a flame when it reacts with water? Magnesium or potassium?

Answer 33

Potassium (the hydrogen catches fire)

Question 34

Why is copper used for water pipes?

Answer 34

It doesn’t react with water

Question 35

Why isn’t sodium used for water pipes?

Answer 35

It has a strong reaction with water

Question 36

What is the reactivity series?

Answer 36

A list of elements ordered by their reactivity

Question 37

How can metals be placed in order of their reactivity?

Answer 37

Add the metals to water or acid and see which ones react the most (by how much fizzing there is)

Question 38

Put these metals in order of reactivity; copper, iron, sodium, silver, potassium

Answer 38

Potassium, sodium, iron copper, silver

Question 39

What is a displacement metal reaction?

Answer 39

When a more reactive element displaces a less reactive element from its compound

Question 40

Explain why zinc can be extracted from zinc oxide with carbon but magnesium cannot be extracted from magnesium oxide with carbon

Answer 40

Magnesium is more reactive than carbon (1), Zinc is less reactive than carbon (1), Carbon can therefore remove oxygen from zinc oxide but not magnesium oxide (1)