Limestone

Question 1

What is the chemical name for Limestone?

Answer 1

Calcium Carbonate

Question 2

Describe the process of the Limestone Cycle

Answer 2

~ To get from Limestone to Quicklime you need to heat it and this produces Co2
~ To get from quicklime to slaked lime you need to add water (H2O)
~To get from slaked lime to lime water you need to add more water/dissolve slaked lime in water and then filter out the solution
~ To get from lime water back to limestone you need to add Carbon Dioxide (Co2)

Question 3

What is the chemical formula for Calcium Carbonate?

Answer 3

CaCo3

Question 4

What is the chemical formula for Calcium Oxide?

Answer 4

CaO

Question 5

What is the chemical formula for Calcium Hydroxide?

Answer 5

Ca(OH)2

Question 6

What is the chemical formula for Calcium Hydroxide Solution?

Answer 6

Ca(OH)

Question 7

Out of the whole process if the limestone cycle, what is the only part that is an (aq) dissolved in water form?

Answer 7

Limewater (Calcium Hydroxide Solution)

Question 8

Name 3 disadvantages of limestone

Answer 8

~ Huge ugly holes permanently damage the landscape
~ Quarrying processes (like blasting rocks apart) makes lots of noise and dust
~ Quarrying destroys the habitats of birds and animals

Question 9

Name 3 advantages of limestone

Answer 9

~ It produces things that people want (e.g. Houses and roads) chemicals used in making paints, medicines also come from it)
~ acidity caused by acid rain can be neutralised using limestone
~ It provides jobs for local people, this boosts the local economy bringing in more money.

Question 10

List some advantages of limestone products

Answer 10

~ It is widely available and cheaper that granite or marble
~ It is fairly easy to cut and shape
~ Limestone concrete doesn’t rot when it gets wet (unlike wood)