The limestone cycle. Limestone. Learning Objectives. By the end of the lesson I will be able to: Carry out thermal decomposition of calcium carbonate Draw a flow diagram of the limestone cycle Write balanced chemical equations for reactions in the limestone cycle . Heating limestone.
By the end of the lesson I will be able to:
Calcium heat calcium carbon
Carbonate oxide dioxide
Decomposing rotting bodies in mass graves and reducing the smell !Uses for quicklime
calcium + water calcium
CaO + H2O Ca(OH)2
To neutralise acidic soils, and to break up the soil so that plants can grow well
To neutralise lakes which have been polluted by acid rainUses for slaked lime
calcium + carbon calcium + water
hydroxide dioxide carbonate
Ca(OH)2 + CO2 CaCO3 + H2O
These reactions all make up the
Use the worksheet called ‘The Limestone
- fill in the gaps and complete the
equations for the reactions of limestone.
Stick into your books.
The Limestone Cycle plants can grow well