Hertswood Academy Gcse Chemistry C1 2 Limestone And Building Materials

Front 1

What type of rock is Limestone?

Back 1

• Sedimentary rock

Front 2

What is it made from?

Back 2

• Remains of crushed sea shells

Front 3

What is its chemical name and formula?

Back 3

• Calcium Carbonate CaC03

Front 4

What happens when we heat CaCO3?

Back 4

• It breaks down into Calcium Oxide and Carbon Dioxide.

Front 5

What type of reaction is this?

Back 5

• Thermal Decomposition

Front 6

What is formed when Calcium oxide is added to water?

Back 6

• Calcium Hydroxide

Front 7

What happens when we bubble carbon dioxide into the Calcium Hydroxide?

Back 7

• It reforms Calcium Carbonate and goes cloudy

Front 8

What is another name for a solution of Calcium Hydroxide?

Back 8

• Limewater

Front 9

What gas does limewater test for?

Back 9

• Carbon Dioxide

Front 10

What is produced when a metal carbonate reacts with an acid?

Back 10

• Salt + Carbon Dioxide + Water

Front 11

How is cement made?

Back 11

• Heating with clay in a rotary kiln

Front 12

How is concrete made?

Back 12

• Mixing cement with sand water and crushed rock

Front 13

What is another word for small stones or gravel added to cement to make concrete?

Back 13

• Aggregate

Front 14

What are the advantages of quarrying limestone?

Back 14

• More employment for local people
• More customers and trade for local businesses
• Improved roads

Front 15

What are the disadvantages of quarrying limestone?

Back 15

• Dust and Noise
• Traffic
• Loss of habitats for wildlife