Which of the following is an exothermic reaction?

sugar dissolving in water <<my choice
an explosion
tea dissolving in water
the cooling of an ice pack

2 answers

No.

http://antoine.frostburg.edu/chem/senese/101/thermo/faq/exothermic-endothermic-examples.shtml
Well exothermic means releasing energy/heat so what do you think?