C1: Limestone

Question 1

What is the main chemical component in limestone?

Answer 1

Calcium carbonate

Question 2

What do you get when calcium carbonate thermally decomposes?

Answer 2

Calcium oxide and carbon dioxide

Question 3

What are the products of when you add water to calcium oxide?

Answer 3

Calcium hydroxide

Question 4

What 4 things make limestone a good building material?

Answer 4

Strong, attractive, inexpensive, can be easily carved into shapes

Question 5

What are the stages in the lime cycle?

Answer 5

Calcium carbonate -> calcium oxide -> calcium hydroxide(s) -> calcium hydroxide(Aq)

Question 6

What are 3 uses of limestone?

Answer 6

Cement, mortar, concrete

Question 7

What are the advantages of quarrying limestone?

Answer 7

Gives more job opportunities/ provides more houses and roads/ it’s cheaper than granite and marble/ business owner will be paying taxes to the local area/ over time can look pretty

Question 8

What are the disadvantages of quarrying limestone?

Answer 8

Destroys habitats and landscapes/ very loud and disturbing to local areas/ Lorraine’s use diesel so will pollute area/ destroying natural beauty/ energy is needed and will likely come from fossil fuels which causes pollution

Question 9

What is limestone made from?

Answer 9

Limestone is made from creatures living between 440 and 70 million years ago, it is sedimentary rock.