Question

A common method used to separate liquid solutions is _____.

filtering

separation by density

fractional distillation

crystallization

Answer 1

c) Fractional distillation

Step-by-step explanation:

A common method used to separate liquid solutions is fractional distillation.

In this process a mixture of two or more liquids that differ in their boiling points are heated. The liquid with the lowest boiling point vaporizes first which is passed onto a condenser and separated out. The same process ensues for the next liquid component until all are separated out in fractions based on their respective boiling points.

For example, consider a mixture of ethanol (b.pt 78 C) and water (b.pt 100 C). The two liquids can be separated by heating the mixture, in which ethanol separates out first followed by water.

Answer 2

According to its definition, a common method used to separate liquid solutions is fractional distillation. I'm 100% sure it's correct.