Question

Neither _____ nor _____ can be created or destroyed, but they can be changed from one to the other

Answer 1

Matter nor energy

hope this helps

Answer 2

The answer is:

Matter & Energy

NEITHER MATTER NOR ENERGY CAN BE CREATED NOR DESTROYED BUT THEY CAN BE CHANGED FROM ONE FORM TO ANOTHER.

This is the law of energy created by Julius Lothar Meyer, a german chemist

He also created the first periodic table...

HOPE THIS HELPS! :)