On heating, calcium carbonate gets converted into calcium oxide and carbon dioxide Is this a physical or a chemical change? (b) Can you prepare one acidic and one basic solution by using the products formed in the above process? If so, write the chemical equation involved.



(a) Chemical change.

(b) Acidic and basic solutions can be prepared by dissolving the products of the above process in water.

CaO + H2O → Ca(OH)2              (basic solution)

CO2 + H2O → H2CO3                 (acidic solution)

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