Question

The dissolving of this solid is endothermic. The decrease in water temperature indicates that the process absorbs heat from the surroundings (water), requiring energy to break the bonds or interactions within the solid and between water molecules.


rephrase like a 8th grader

Answer 1

When this solid dissolves in water, it takes in heat, which makes the water feel colder. This means it needs energy to break apart the bonds in the solid and also between the water molecules.