Question

true or false: a physical change may produce a new substance. choose one option a true b false

Explanation:

A physical change is a change in which no new substance is formed. For example, melting ice (solid water) to get liquid water. The chemical composition (H₂O) remains the same. Only the state of matter changes. So, the statement "a physical change may produce a new substance" is false.

Answer:

B. False