Chemistry · Chemical Reactions and Equations
Which one of the following is an example of an endothermic reaction?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1CH 4 (g) + 2O 2 (g) → CO 2 (g) + 2H 2 O(l)
- 2C(s) + O 2 (g) → CO 2 (g)
- 3CaCO 3 (s) → CaO(s) + CO 2 (g)✓
- 4CaO(s) + H 2 O(l) → Ca(OH) 2 (aq)
Correct answer
CaCO 3 (s) → CaO(s) + CO 2 (g)
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