Calcium carbonate Flashcards
1
Q
What does calcium carbonate form when heated?
A
Calcium oxide and Carbon dioxide.
2
Q
What do the uses of limestone include?
A
Making cement, mortar and concrete.
3
Q
What is limestone mainly made out of?
A
Calcium Carbonate.
4
Q
What happens in the reaction called thermal decomposition?
A
When calcium carbonate is heated strongly and so breaks down.
5
Q
What is the equation for the thermal decomposition of calcium carbonate?
A
calcium carbonate/heat—–calcium oxide+carbon dioxide
CaCO3/heat—–CaO+CO2
6
Q
Why can’t we do reactions such as magnesium carbonate—-magnesium oxide +carbon dioxide in class?
A
The Bunsen burners cannot reach a high enough temperature to thermally decompose some carbonates of Group 1 metals.
