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How do you make calcium hydroxide (Ca(OH)2) from Calcium carbonate (CaCO3) and what are the equations.

Thermally decompose the calcium carbonate:

CaCO-> CaO + CO2

Now mix the CaO with water:

CaO + H2O -> Ca(OH)2

Nathan  L. GCSE Maths tutor, A Level Maths tutor, GCSE Chemistry tuto...

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