Which of these is an example of a chemical change?

A fireworks exploding

B grinding powder

C melting cheese

D ironing a shirt

A. Fireworks exploding is the answer

Hey There,

Your answer is A) Fireworks exploding

This is an action of chemical change. Grinding powder, melting cheese and ironing a shirt are all action of physical change. You are just changing their form, not performing a chemical change. When fireworks explode, a chemical inside of them changes.

Best Of Luck,

- I. A. -