Question

What changes do not invlove forming or breaking chemical bonds?

Answer 1

have you got some options?

Answer 2

Burning,melting, cutting, boiling, digesting, rusting.

Answer 3

Hint:
burning, boiling and melting are processes which involve change of energy, and changing the energy of a molecule, can be a cause of its breaking, for example.
Digesting and rusting, are processes which involve chemical reactions, and those chemical reactions can be a cause of transformation of certain molecules.
Cutting is a mechanical process which doesn't affect the bonds inside a molecule

Answer 4

Ok. Thanks

Answer 5

Thanks! :)