Question

Calcium carbonate decompose into ________ and ________.

• A. Calcium oxide
• B. Oxygen

Answer 1

Chemical reactions: A chemical reaction is in which the bonds are broken within reactant molecules, and new bonds are formed within product molecules in order to form a new substance.

• Calcium Carbonate(${\mathrm{CaCO}}_3$) decomposite into Calcium oxide($\mathrm{CaO}$) and Oxygen (${\mathrm{O}}_2$) upon application of heat.
• It is a type of decomposition reaction.
• $\underset{\mathrm{Calcium}\mathrm{Carbonate}}{{\mathrm{CaCO}}_3\left(\mathrm{s}\right)}\stackrel{\mathrm{Heat}}{\to }\underset{\mathrm{Calcium}\mathrm{oxide}}{\mathrm{CaO}\left(\mathrm{s}\right)}+\underset{\mathrm{Oxygen}}{{\mathrm{O}}_2\left(\mathrm{g}\right)}$

Therefore, Calcium carbonate decomposes into Calcium oxide and Oxygen.