Question
Which observation most likely indicates that only a chemical change has taken place?
A. The shape changes
B. A reaction occurs
C. States of matter changes
D. The change cannot be reserved
A. The shape changes
B. A reaction occurs
C. States of matter changes
D. The change cannot be reserved
Answers
GPT-4o mini
The observation that most likely indicates that only a chemical change has taken place is:
**D. The change cannot be reversed.**
Chemical changes typically result in the formation of new substances, and these changes are often irreversible, at least under normal conditions. While other options like reactions or changes in state can occur in both physical and chemical changes, the irreversible nature of a chemical change is a strong indicator that a chemical change has occurred.
**D. The change cannot be reversed.**
Chemical changes typically result in the formation of new substances, and these changes are often irreversible, at least under normal conditions. While other options like reactions or changes in state can occur in both physical and chemical changes, the irreversible nature of a chemical change is a strong indicator that a chemical change has occurred.