Limestone Flashcards
1
Q
What is mixed together to make concrete
What does it produce
A
Sand and gravel and limestone
Produces pollution as the heat is made using fossil fuels
2
Q
what’s thermal decomposition
A
Breaking down when heated
3
Q
What is thermal decomposition used for
A
Break down the calcium carbonate down into calcium oxide and carbon dioxide
4
Q
What is calcium hydroxide
A
Alkaline
Used to neutralise acidic soil
Used to make mortar -stick bricks together
Reacts with CO2 gas in the air and sets soil
5
Q
What is limestone
A
Sedimentary rock Made from mainly calcium carbonate (CaC03)
Cheap and easy to obtain
