Explanations:
The chemical formula of aluminum carbonate is expressed as Al₂(CO₃)₃. When it is heated it decomposes to produce aluminum oxide and carbon dioxide gas. The compound can easily decompose when heated due to the weak bond produced by aluminum.
Therefore we can conclude that Aluminum carbonate, with heat, produces aluminum oxide and carbon dioxide gas. The balanced chemical reaction decomposition of aluminum carbonate is given as shown below;
[tex]Al_2(CO_3)_3\rightarrow Al_2O_3+3CO_2[/tex]
Since the compound decomposed under heat to produce aluminum oxide and carbon dioxide gas, hence the kind of chemical reaction is known as a decomposition reaction. I was able to know because the compound (one reactant) breaks down to form two products.