Select the best statement.
A)Physical changes may be reversed by changing the temperature.
B)Physical changes alter the composition of the substances involved.
C)Physical properties are not valid characteristics for identifying a substance.
D)Physical properties are mostly extensive in nature.
E)Physical changes are usually accompanied by chemical changes.

Question

Quizplus · Accepted Answer

Physical changes are changes in the physical properties of a substance, such as size, shape, or phase, and do not alter the chemical composition of a substance. These changes may be reversed by changing the temperature or other physical conditions. This makes option A the best statement.

Select the Best Statement