All of the following are clues that a chemical reaction has taken place except
A) A color change occurs.
B) A solid forms.
C) The reactant is smaller.
D) Bubbles form.
E) A flame occurs.

Question

Quizplus · Accepted Answer

The size of the reactant does not indicate that a chemical reaction has taken place. The other options (A, B, D, E) all indicate a chemical reaction has occurred.

All of the Following Are Clues That a Chemical Reaction