Question

1. when water evaporates from a glass, this is an example of a: physical change chemical change chemical reaction nuclear reaction

Explanation:

Evaporation is a process where a liquid changes to a gas. In the case of water evaporating from a glass, the water molecules gain enough energy to escape into the air. This is a physical change because the chemical composition of water (H₂O) remains the same throughout the process. It is not a chemical reaction as no new substances are formed, nor is it a nuclear reaction which involves changes in the nucleus of atoms.

Answer:

D. physical change