When two substances are mixed together, a color change is observed. Does this mean that a chemical reaction has definitely occurred?

- Yes because any change indicates a chemical reaction.

- No because some physical changes produce color changes.

- No because color changes are not indicators of chemical reactions.

- Yes because color changes occur only when new compounds are formed.

Question

Nellie

Chemistry

23 July, 06:55

When two substances are mixed together, a color change is observed. Does this mean that a chemical reaction has definitely occurred?

- Yes because any change indicates a chemical reaction.

- No because some physical changes produce color changes.

- No because color changes are not indicators of chemical reactions.

- Yes because color changes occur only when new compounds are formed.

+3

Answers (1)

Know the Answer?

Tommy Hernandez · Answer 1

I believe the correct answer from the choices listed above is the third option. When two substances are mixed together, a color change is observed. This observation is not an enough evidence that there is a chemical reaction happening because color changes are not indicators of chemical reactions.