Question

on a hot summer day, angelina and gael are having a picnic. angelina notices that there is liquid water on the outside of gaels cold soda can. which answer best explains what phase change has occurred and how the molecule arrangement has changed?
freezing: molecules change from liquid to solid and become tightly packed.
evaporation: molecules change from closely packed (liquid) to widely spaced (gas).
condensation: molecules change from widely spaced (gas) to closely packed (liquid).
sublimation: molecules change from solid to gas without becoming liquid.

Explanation:

Step1: Analyze condensation

Condensation is the phase - change from gas (widely - spaced molecules) to liquid (closely - packed molecules).

Step2: Relate to the problem

The liquid water on the outside of the cold soda can is formed when water vapor (gas) in the air (hot summer day has more water vapor) cools down on the cold surface of the can and changes to liquid. This is condensation.

Answer:

Condensation: molecules change from widely spaced (gas) to closely packed (liquid).