Displacement

Question 1

How do you make a salt?

Answer 1

Acid + Alkali — Salt + water

Question 2

Examples of salts

Answer 2

Examples of salts:
Magnesium chloride
Sodium chloride
Potassium nitrate
Magnesium sulphate
Calcium chloride

Question 3

Explain

Magnesium + Copper sulphate – Magnesium sulphate + Copper

Answer 3

Magnesium is more reactive than copper, as a result copper is displaced by magnesium

Question 4

Explain

Zinc + Potassium nitrate - Potassium nitrate +Zinc

Answer 4

Potassium is more reactive than zinc, as a result zinc cannot displace potassium.

Question 5

What can we use the reactivity series for?

Answer 5

Reactivity series can be used to predict reactions.

Question 6

When are most metallic elements stable?

Answer 6

Metallic elements are stable when they have formed compounds.

Question 7

What is a displacement reaction?

Example

Answer 7

A displacement reaction is when a metal which is more reactive takes the place of a less reactive metal.
Example
Zinc chloride + Potassium — Zinc + Potassium chloride

Question 8

What does soluble mean?

Answer 8

Soluble means dissolve in a liquid