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Limestone

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

The chemical name for limestone

a)

Calcium oxide

b)

Calcium hydroxide

c)

Calcium carbonate

d)

Copper carbonate

2.

Uses of limestone

a)

Making glass

b)

Buildings

c)

Fuel

d)

Statues

e)

Concrete

3.

Chemical formula for limewater

a)

CaOH

b)

CaOH2

c)

Ca(OH)2

d)

Ca2OH

4.

Common name of calcium hydroxide

a)

Limestone

b)

Limewater

c)

Slaked lime

d)

Quicklime

5.

Product given OFF when limestone decomposes

a)

Calcium oxide

b)

Oxygen

c)

Calcium chloride

d)

Carbon dioxide

6.

Use of slaked lime

a)

Extracting metals

b)

Neutralising soil

c)

Buildings

d)

Concrete

7.

What is the process called for limestone breaking down?

a)

Thermal oxidation

b)

Thermal decomposition

c)

Exothermic decomposition

d)

Neutral oxidation

8.

Test for carbon dioxide: limewater turns (a)  

9.

How do you turn quick lime into slaked lime?

a)

Add a little water

b)

Add a little oxygen

c)

Add a lot of water

d)

Add carbon dioxide

10.

What does the time taken to decompose a carbonate tell us about the metal?

a)

Acidity

b)

Stability

c)

Reactivity

d)

Alkalinity