Question

When calcium carbonate is heated strongly in
air it gives quick lime along with a gaseous
product. Write the balanced chemical equation
for the reaction involved. [1]

Answer 1

Heyaa friend !

⚜Here's your answer :

>> The balanced chemical equation involved in the reaction is :

• CaCO3 ---> CaO + CO2 (g)

ie , calcium carbonate ---heated in air---> Calcium oxide ( quick lime) + carbon dioxide ( gaseous)

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Answer 2

Heating Calcium Carbonate

Event: When Calcium carbonate $\mathrm{(CaCO_{3})}$ is heated strongly in air, it gives quick lime or Calcium oxide $\mathrm{(CaO)}$ along with gaseous product as Carbon dioxide $\mathrm{(CO_{2})}$.

Equation:

$\underbrace{\mathrm{CaCO_{3}}}_{\text{(Calcium carbonate)}}\xrightarrow{\text{heat}}\underbrace{\mathrm{CaO}}_{\text{(Calcium oxide)}}+\underbrace{\mathrm{CO_{2}}}_{\text{(Carbon dioxide)}}$

Balanced equation:

It left hand side number of $\text{Ca}$, $\text{C}$ and $\text{O}$ atoms are $\mathrm{1}$, $\mathrm{1}$ and $\mathrm{3}$ respectively, which is same in the right hand side. So the balanced equation is

$\quad \mathrm{CaCO_{3}=CaO+CO_{2}}$

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