Question

separating mixtures based on boiling points. density decantation distillation

Explanation:

Distillation is a separation technique that relies on differences in boiling points. When a mixture is heated, the component with the lower boiling point vaporizes first. The vapor is then cooled and condensed back into a liquid, effectively separating it from the other components in the mixture. Density - based separation involves using differences in mass per unit volume, and decantation is used for separating immiscible liquids or a liquid from a solid (by pouring off the liquid layer). Since the question is about boiling - point differences, distillation is the relevant method.

Answer:

Distillation