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.
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By the end of the lesson I will be able to:
Calcium heat calcium carbon
Making cement, mortar and concrete.
Decomposing rotting bodies in mass graves and reducing the smell !
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 rain
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