Rocks and building materials Flashcards
1
Q
What is limestone made up of?
A
Calcium carbonate (CaCO3)
2
Q
What is limestone mainly used for?
A
Building materials
3
Q
How do most carbonates decompose?
A
Metal carbonate —–> Metal oxide + Carbon dioxide
4
Q
What does Calcium oxide and water make?
A
Ca(OH)2
5
Q
What can Ca(OH)2 be used for?
A
neutralising acids
6
Q
When calcium hydroxide and carbon dioxide react what is the product?
A
Calcium carbonate
7
Q
Limewater is used as a test for Carbon dioxide. How does the limewater turn?
A
Cloudy
8
Q
When carbonates react with Acids what is the product?
A
Carbon dioxide, Salt and water
9
Q
How can limestone be damaged?
A
By acid rain
10
Q
How do we make cement?
A
Heat limestone and clay
11
Q
When you mix sand, cement and aggregate together what do you get?
A
Concrete
