A solid compound in a sealed container was kept at a very low temperature in a freezer. When placed at room temperature, the substance quickly turned into a liquid. This compound is most likely which of these?

A solid that quickly becomes liquid at room temperature has a low melting point. Ionic compounds generally have high melting points because their ions are held together by strong electrostatic forces. A covalent molecular compound is more likely to melt at a relatively low temperature, so the best choice is a covalent compound because it has a low melting point.

AI-written and checked against the verified answer.