Question

List Four Chemical reactions

Answer 1

Baking soda and vinegar
explosions
rust
fireworks

Answer 2

You should know that chemical reactions are things that you can not change back.
Physical reactions like ripping paper is still physical, the "paper" has not really changed

1) baking soda and vinegar mixed together.
2) An oven cooking a pie.
3) Burning a sheet of paper
4) rust, old peeling of some kind.