Question

What is the effect of heat and light on chemical reaction​

Answer 1

Is it fire onn a bottle?

Step-by-step explanation:

Because I thought that if you shine light ona ANYTHING plastic, the chemical reaction is a little fire.

Answer 2

Exothermic reactions release heat and light into their surroundings. For example, combustion reactions are usually exothermic. In exothermic reactions, the products have less enthalpy than the reactants, and as a result, an exothermic reaction is said to have a negative enthalpy of reaction.