Question

(b) A new substance is formed when it is formed, what is it?
No new substance is formed when it is formed, what is it?
Distinguish between the two of them.(2)​

Answer 1

Answer:

The Answer is Chemical and physical change.

Explanation:

Physical changes are a change in which no new substances are formed, and the substance which is changed is the same.

A chemical reaction happens when substances break apart or combine to form one or more new substances. New substances form when bonds break and new bonds form. The chemical properties of the new substances are different from those of the original substances. ... A precipitate is a solid substance that forms in a solution.