Signs of a Chemical Reaction
Signs That Indicate a Chemical Reaction
- change in odor or color (ex: burning food or faded paint)
- foaming or fizzing
- production of sound, heat or light
Definition of Reactant and Product
Reactant: A substance that participates in a chemical reaction.
Product: A completely new substance that forms from a chemical reaction.
All chemical changes from my video are exothermic because they release something like light or completely change their appearance .