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Which of the following is an exothermic reaction?
A. condensation
B.Dissolving sugar in water
C.melting ice
D. Dissolving ammonium nitrate in water to cool the water
i was thinking D
2 Answers
- hcbiochemLv 72 years ago
A. condensation
Because the water cools, the dissolving process is absorbing heat and so is endothermic.
To convert a gas to a liquid (condensation), the gas molecules must lose heat. So, that is an exothermic process.
- Roger the MoleLv 72 years ago
D is the only chemical reaction on the list of possible answers, and it is exothermic.
