In two or more complete sentences explain how to balance the chemical equation and classify its reaction type. ___Al2(CO3)3 ⟶ ___Al2O3 + ___CO2

Al₂(CO₃)₃ → Al₂O₃ + 3CO₂     Decomposition

Explanation:

This reaction is a decomposition type, we make two compounds from one. This is the case where a single substance breaks down, producing two or more different substances. In orden to balance it we need to count.

We have 2 Al in both sides so at least it is balanced, but we have 3 C in reactant side from the carbonate and we may need 3 C in product side.

In conclussion we have 2 Al and 3 C on both sides. In reactant side we count 9 O so in product side we have 6 O from the Co₂ and 3 O from the aluminum oxide. Finally the reaction is balanced

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