Signs of a chemical reaction include
Loss or gain of temperature
Formation of gas
Change in color
Formation of solid
Takes in energy
A reactant is what creates the reaction in a chemical reaction, the product is the end result of the reaction.
Works Cited“Chemical reactions.” Youtube. N.p., n.d. Web. 13 Jan. 2015. <https://m.youtube.com/watch?v=FofPjj7v414>.