C1.2 Limestone and building materials

Question 1

How do we obtain limestone?

Answer 1

Quarrying

Question 2

What are the products of thermal decomposition of a metal carbonate?

Answer 2

(Metal) oxide and carbon dioxide

Question 3

Which are the five metal carbonates that decompose upon heating?

Answer 3

Calcium, Copper, Zinc, Magnesium, Sodium

Question 4

Do all carbonates of metals in Group 1 decompose at the temperatures reached by a Bunsen burner?

Answer 4

NO, not all of the carbonate metals decompose at the temperature of a Bunsen burner

Question 5

What does calcium oxide react with water to produce? What is a use of the product?

Answer 5

Calcium hydroxide

Can neutralise acids

Question 6

What experiment can you do to produce calcium carbonate?

Answer 6

Limewater (calcium hydroxide) with carbon dioxide

Question 7

What are the products of a carbonate with an acid?

Answer 7

Carbon dioxide, salt and water

Question 8

How is cement made?

Answer 8

Limestone heated in a kiln with clay

Question 9

How is concrete made?

Answer 9

Cement, sand, water and aggregate

Question 10

What is used to make mortar?

Answer 10

Slaked lime, sand and water