An exothermic reaction is one that releases energy from the system to its surroundings, usually in the form of heat, but also in the form of light, electricity, or sound. Since the water gives off heat, the temperature of the water should be lower, so the answer might be B) The thermometer will show a decrease in temp.
Answer:
A. An Atom
Explanation:
An atom is the smallest particle of an element, having the same chemical properties as the bulk element.
I would say physical, because a physical change is affecting the form of a chemical substance, but not it's chemical makeup.
Inter-molecular forces. The greater the attraction between particles the more energy required to break the forces or "melt" them.
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