On heating, calcium carbonate gets converted into calcium oxide and carbon dioxide.
(a) 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.

AcademicChemistryNCERTClass 9

On heating, calcium carbonate gets converted into calcium oxide and carbon dioxide.
$CaCO_3 + H_2O → CaO + CO_2$
(a) It is a chemical change in which new substances are formed.
(b) Calcium oxide when dissolved in water, forms a basic solution.
$CaO + H_2O → Ca(OH)_2$
Carbon dioxide when dissolved in water, forms an acidic solution
$CO_2 + H_2O →  H_2CO_3$
raja
Updated on 10-Oct-2022 13:29:37

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