Question

Which of these is NOT an indicator of a chemical reaction.

Question 7 options:


Change in color


Production of heat, cold or light


Precipitation of a solid


Change of state

Answer 1

I'm not 100% on the answer but I do know that it is either B.) Production of heat,cold or light. or C.) Precipitation of a solid. I know that when a chemical reaction happens that change in color and change in state (new substance) happens. I hope this helps you figure it out.