If a chemical change has taken place, which of these is most likely true?

Question

Group of answer choices

An easily reversible process has taken place.

Original substance can be easily recovered.

Composition of a substance is the same.

A completely new substance is formed.

Answer 1

If a chemical change has taken place, the statement that is most likely true is:

A completely new substance is formed.

In a chemical change, the original substances undergo a transformation resulting in new substances with different compositions and properties. The other options mentioned (reversibility, recovery of original substances, and unchanged composition) are typically characteristics of physical changes rather than chemical changes.