10 grade science> When calcium carbonate is heated, it deco...
When calcium carbonate is heated, it decomposes to give ______________.A) waterB) calcium oxideC) carbon dioxideD) None of these
1 AnswersWhen calcium carbonate (CaCO3) is heated, it undergoes a decomposition reaction. The reaction can be represented by the following equation:
CaCO3 (s) → CaO (s) + CO2 (g)
From this reaction, we can see that when calcium carbonate is heated, it decomposes into calcium oxide (CaO) and carbon dioxide (CO2).
The correct answer to the question is:
B) calcium oxide (and carbon dioxide is also produced).
However, since the question specifically asks for one answer, the primary product of interest when calcium carbonate decomposes is calcium oxide. Therefore, the best choice is:
B) calcium oxide.
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