Michael mixes two chemicals together in a beaker. The chemicals change color, and the beaker heats up quickly. What kind of change most likely occurred?

Question

A.
Only a physical change occurred.
B.
No change occurred.
C.
A mixture formed.
D.
A chemical change occurred.

Answer 1

D. A chemical change occurred.

The observations of a color change and a rapid increase in temperature suggest that a chemical reaction has taken place. These types of changes are indicative of a chemical change rather than a physical change or mere mixing.