Limestone And Building Materials

Question 1

Name a use of limestone?

Answer 1

Building statues

Question 2

What are the properties of limestone?

Answer 2

1) durable rock
2) strong rock
3) easily cut into block shapes

Question 3

How do you process limestone?

Answer 3

Crush it mix it with some clay, heat it up and you form cement. Then if you add sand you form mortar. Finally if you add aggregate (pebbles) you form concrete.

Question 4

How is limestone produced?

Answer 4

From quarrying

Question 5

Give 3 disadvantages for quarrying?

Answer 5

1) Noisy
2) pollution
3) Spoils landscape

Question 6

Give 2 advantages for quarrying?

Answer 6

1) valuable material

2) creates employment

Question 7

What is the formula for limestone?

Answer 7

CACO3

Question 8

Wha happens when you heat Calum carbonate?

Answer 8

You produce calcium oxide (CaO) and carbon dioxide

Question 9

What is the reaction called when you heat calcium carbonate?

Answer 9

Thermal decomposition

Question 10

What can Calcium oxide do?

Answer 10

Neutralise acid soil and lakes

Question 11

What happens when you add water to calcium oxide?

Answer 11

You produce solid calcium hydroxide

Question 12

What happens when you add more water to sodium hydroxide!

Answer 12

You produce calcium hydroxide solution Ca(OH)2

Question 13

What then happens when you add carbon dioxide to calcium hydroxide solution?

Answer 13

It then creates calcium carbonate again

Question 14

What do you need to do to make copper carbonate?

Answer 14

Copper oxide + carbon dioxide

Question 15

What do you need to do to makes one carbonate?

Answer 15

Zinc oxide + carbon dioxide

Question 16

What do you need to do to make magnesium carbonate?

Answer 16

Magnesium oxide + carbon dioxide

Question 17

What are carbonates at the top of group 1 difficult to do?

Answer 17

Decompose