Limestone and it's uses

Question 1

What are the reactions of carbonates?

Answer 1

All carbonates react with acid to produce a salt, water and carbon dioxide gas. Lime water is the test for carbon dioxide. Limestone is damaged by acid rain.

Question 2

How does the limestone reaction cycle go?

Answer 2

Calcium Carbonate decomposes to Calcium Oxide and Calcium Dioxide. Water + Calcium Oxide= Calcium Hydroxide. This is an Alkali. Can be used to neutralise acid. Dissolve calcium hydroxide for limewater

Question 3

How is cement made?

Answer 3

Cement is made by heating limestone with clay in a kiln. Made into mortar for bricks and blocks in building and concrete for roads.

Question 4

Issues with limestone? Disadvantages and advantages.

Answer 4

Limestone issues include:

Good:
More work
More customers
Better roads

Bad:
Dust 
Noise
Traffic
Impact on wildlife.

Question 5

Name the limestone uses

Answer 5

Building
Calcium Oxide
Cement and Concrete

When heated strongly in like kilns it becomes calcium oxide and carbon dioxide. Equation: CaCO3 —– CaO + Co2.
Called thermal decomposition