Question

when fireworks explode, what is happening to the fireworks? a chemical change a physical change a thermal change

Explanation:

When fireworks explode, chemical reactions occur. Chemical substances in the fireworks react with each other to produce light, heat, sound and new substances. Physical changes only affect the state or appearance without changing the chemical composition. Thermal change is a result of the chemical reaction in this case. So it is a chemical change.

Answer:

A. A chemical change