Chemistry: Limestone and building materials

HideShow resource information

Calcium carbonate

Limestone is mainly calcium carbonate, CaCO3 which breaks down when heated to form calcium oxide and carbon dioxide (thermal decomposition)

Calcium oxide + water forms calcium hydroxide

Limestone and its products have many uses including cement, mortar and concrete. 

Calcium carbonate --- (heat) ----> calcium oxide + carbon dioxide

Other metal carbonates decompose in the same way, including sodium carbonate, magnesium carbonate and copper carbonate. 

Metals high up in the reactivity series need a lot of energy to decompose them. 

Metals low down in the reactivity series have carbonates that are easily decomposed. 




cheeky limestone :)

Similar Chemistry resources:

See all Chemistry resources »See all The limestone cycle resources »