Question

Calcium oxide and carbon dioxide combine to form calcium carbonate in the reversible reaction:

CaO + CO2 ⇌ CaCO3

When the reaction is at dynamic equilibrium, which statement must be true?

Answer 1

[AI-generated answer — Bot GPT 3.5]

At dynamic equilibrium, the rate of the forward reaction (CaO + CO2 → CaCO3) is equal to the rate of the reverse reaction (CaCO3 → CaO + CO2). Therefore, the concentration of each compound must remain constant over time.