A scientist has two substances that she is testing in her lab: a pink substance and a green substance. At room temperature, both

Answer:

The pink substance underwent a phase change because its molecules were held together by weaker attractive forces compared to those of the green substance. The molecules in the pink substance moved rapidly enough to facilitate the phase change. In contrast, the molecules of the green substance experienced stronger attractive forces, meaning the energy supplied to them was insufficient to overcome these forces and prompt a phase change.