Chemistry · Oct / Nov 2024 · Paper 11 · Question 16
5070Reversible reactions and equilibrium
If calcium carbonate is heated in a closed container, it will decompose, forming calcium oxide and carbon dioxide. Calcium oxide and carbon dioxide can recombine to form calcium carbonate. After some time, a position is reached where calcium carbonate is decomposing, and calcium oxide and carbon dioxide are recombining at the same rate. What is this position called?
- Aactivation energy
- Bbackward reaction
- Cequilibrium
- Dneutralisation
As printed in the paper
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Correct answer: C. equilibrium
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