Which is NOT an indication of a chemical change?

Question

Responses

formation of a precipitate (solid)
formation of a precipitate (solid) EndFragment

change in energy
change in energy

temperature change
temperature change EndFragment

shape change
shape change EndFragment

Answer 1

The correct answer is shape change. Shape change alone does not indicate a chemical change; it can also occur during a physical change. The other responses—formation of a precipitate, change in energy, and temperature change—are indicative of chemical changes.