A red solid is heated in an evacuated container until it completely vaporizes. When the vapor cools, it is found to be a sliver liquid. The mass of the silver liquid is less than that of the original solid. The red solid is best classified as

Question

Quizplus · Accepted Answer

The red solid is best classified as a compound because it changes its state and composition upon heating, indicating a chemical change. The mass loss suggests decomposition, which is characteristic of compounds rather than elements or mixtures.

A Red Solid Is Heated in an Evacuated Container Until