Question

explain the difference between an endothermic and exothermic reaction. give one example of each.

Explanation:

Endothermic reactions absorb heat from the surroundings, increasing the system's internal energy. Exothermic reactions release heat to the surroundings, decreasing the system's internal energy. For endothermic, the dissolving of ammonium nitrate in water is an example as it cools the solution. For exothermic, combustion of wood is an example as it gives off heat and light.

Answer:

Endothermic reactions absorb heat (e.g., dissolving ammonium nitrate in water). Exothermic reactions release heat (e.g., combustion of wood).