Calcium Carbonate Flashcards
What’s the main compound in limestone?
CaCO3, calcium carbonate
How do they get limestone?
It’s quarried
What can limestone by used as?
A building material
What are the products of the thermal decomposition of calcium carbonate?
Calcium oxide and carbon dioxide
What do most metal carbonates decompose into when heated (thermal decomp.)?
Metal oxide and carbon dioxide
What does calcium oxide reacted with water produce?
Calcium hydroxide
What is calcium hydroxide?
An alkali, that can be used in the neutralisation of acids
What’s the common name of calcium hydroxide solution?
Limewater
What does limewater produce when reacted with carbon dioxide?
Calcium carbonate
What’s limewater used to test for?
Carbon dioxide
What happens to limewater if CO2 is present?
Turns cloudy
What is limestone damaged by?
Acid rain
What is produced when carbonates react with acids?
Carbon dioxide, a salt, and water
How is cement made?
Limestone heated with clay
How is mortar made?
Cement is mixed with sand
