Is a exploding firecracker a physical or chemical change?

Answer 1

Although the firecracker gets its energy from a chemical reaction, most of the damage it does is physical from the shockwave coming from it as it explodes. Very near the explosion there will also be some chemical damage as the burning explosive can burn some its surroundings - and burns are a type of chemical damage.

Answer 2

phyical, because when you let go of the rubber band it returns to its original form

Answer 3

physical. no chemical reactions are going on and it is still a rubber band, it is just changing form, not what it is made of.

Answer 4

Setting off fireworks is a chemical change due to the fire combining with the explosives to change the full characteristics of all molecules

Answer 5

Rubber is not a change of any sort. It is a mixture of organic polymers that can undergo physical and chemical changes.

Answer 6

Chemical