Chapter 15, Problem 18R

To determine

The correct term to complete the given sentence.

Explanation of Solution

Introduction:

A physical change is defined as a change in shape, size and state of matter while the identity remains same.

Distillation is defined as a process in which substances are separated in a mixture. The distillation is done by evaporating a liquid and recondense its vapor.

From the above, it is clear that only the state of substance is change and it can be brought back to its original state.

Therefore, the complete sentence is “Distillation is the process that can separate two liquids using physical change.

Conclusion:

Hence, distillation is the process that can separate two liquids using physical change.