Question

as atoms gain energy, they move faster and slide past one another more easily. atoms at the surface of the substance overcome attractions to nearby atoms and break free of the surface. which change of state is taking place? liquid to gas gas to liquid liquid to solid solid to liquid

Explanation:

In a liquid, atoms have more energy than in a solid and can move past one another. When atoms at the surface gain enough energy to overcome attractions and break free, they enter the gas state. This is the process of evaporation (liquid to gas). For gas to liquid (condensation), atoms lose energy. Liquid to solid (freezing) also involves loss of energy. Solid to liquid (melting) is atoms gaining energy but in solid - liquid change, the structure changes but not atoms breaking free from the surface like in liquid - gas.

Answer:

liquid to gas