Question

which is the main difference between physical changes and chemical changes? a physical change forms one or more new substances but a chemical change does not. a chemical change forms one or more new substances but a physical change does not. none of the above substances change state of matter only by undergoing physical changes, not chemical changes.

Explanation:

A physical change only affects the form or state of a substance, not its chemical composition. A chemical change results in the formation of one or more new substances with different chemical properties.

Answer:

B. A chemical change forms one or more new substances but a physical change does not.