Compound ‘X’ decomposes to form compound ‘Y’ and CO₂
gas.
Compound Y is used in manufacturing of cement.
(a) Name the compounds ‘X’ and ‘Y’.
(b) Write the chemical equation for this reaction.

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Solution

Calcium carbonate (limestone) decomposes on heating to give calcium oxide and carbon dioxide. (a) X is calcium carbonate
Y is calcium oxide

(b) CaCO₃ (s) ⎯→ CaO(s) +CO₂(g

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Compound ‘X’ decomposes to form compound ‘Y’ and CO2 gas. Compound Y is used in manufacturing of cement. (a) Name the compounds ‘X’ and ‘Y’. (b) Write the chemical equation for this reaction.

Calcium carbonate (limestone) decomposes on heating to give calcium oxide and carbon dioxide. (a) X is calcium carbonate Y is calcium oxide (b) CaCO₃ (s) ⎯→ CaO(s) +CO₂(g

Compound ‘X’ decomposes to form compound ‘Y’ and CO₂
gas.
Compound Y is used in manufacturing of cement.
(a) Name the compounds ‘X’ and ‘Y’.
(b) Write the chemical equation for this reaction.

Calcium carbonate (limestone) decomposes on heating to give calcium oxide and carbon dioxide. (a) X is calcium carbonate
Y is calcium oxide

(b) CaCO₃ (s) ⎯→ CaO(s) +CO₂(g