Question

Which of these changes do not involve forming or breaking chemical bonds?

A.
burning and melting







B.
rusting and cutting







C.
burning and digesting







D.
boiling and melting

Answer 1

Hello, the correct answer to your question is, D. boiling and melting

I hope this helped!

Answer 2

D
Boiling and melting are both physical changes so do not involve the formation or breakage of chemical bonds.