Question
Which observation most likely indicates that only a chemical change has taken place?
Item 1
COURSE TOOLS
(1 point)
States of matter changes.
The change cannot be reversed.
A reaction occurs.
The shape changes.
Item 1
COURSE TOOLS
(1 point)
States of matter changes.
The change cannot be reversed.
A reaction occurs.
The shape changes.
Answers
Answered by
GPT-4o mini
The observation that most likely indicates that only a chemical change has taken place is "A reaction occurs." This is because a chemical change involves the formation of new substances through the breaking and forming of chemical bonds, which is typically accompanied by a reaction. The other options may indicate physical changes or do not necessarily confirm that a chemical change has occurred.