1.2 Limestone and Building Materials

Question 1

What is the chemical name for limestone and what is the formula for it?

Answer 1

Calcium carbonate, CaCO₃

Question 2

What is the product of thermal decomposition with carbonates (calcium, magnesium, copper, zinc)?

Answer 2

… oxide + carbon dioxide

Question 3

What is the product of reacting calcium oxide with water?

Answer 3

Calcium hydroxide

Question 4

What happens when a solution of calcium hydroxide (limewater) reacts with carbon dioxide and what is produced?

Answer 4

The limewater turns cloudy, calcium carbonate is produced

Question 5

What is formed when carbonates react with acid?

Answer 5

A salt, carbon dioxide and water

Question 6

What damages limestone?

Answer 6

Acid rain

Question 7

How is concrete made?

Answer 7

Limestone is heated with clay to make cement. Cement is mixed with sand and aggregate to make concrete.

Question 8

What are the uses of limestone?

Answer 8

Cement/concrete, building materials

Question 9

What are the disadvantages of quarrying limestone?

Answer 9

Ugly, noisy, destroys habitats, pollution