How are physical changes different than chemical changes?
A) They aren't different at all.
B) Chemical changes are much more common than physical changes.
C) Chemical changes are much faster than physical changes.
D) Chemical changes involve making and breaking bonds and physical changes do not.
E) Chemical changes involve changes of state and physical changes do not.

Question

Quizplus · Accepted Answer

Physical changes involve a change in the physical properties of a substance, such as size or shape, without changing its chemical composition. Chemical changes, on the other hand, involve a change in the chemical composition of a substance, such as the formation or breaking of chemical bonds. Therefore, chemical changes involve making and breaking bonds and physical changes do not.

How Are Physical Changes Different Than Chemical Changes