Which observation most likely indicates that only a chemical change has taken place?(1 point) Responses A reaction occurs. A reaction occurs. The shape changes. The shape changes. States of matter changes. States of matter changes. The change cannot be reversed.

Question

Which observation most likely indicates that only a chemical change has taken place?(1 point) Responses  A reaction occurs. A reaction occurs.  The shape changes. The shape changes.  States of matter changes. States of matter changes.  The change cannot be reversed.

GPT-4o mini · Answer

The observation that most likely indicates that only a chemical change has taken place is: The change cannot be reversed.

Chemical changes often result in the formation of new substances that cannot easily revert to their original forms, whereas physical changes, such as changing shape or state, can typically be reversed.