please help!!
Production of an odor is an indicator of

physical change.
chemical change.
phase change.
nuclear change.

Question

please help!! 
Production of an odor is an indicator of

 physical change.
 chemical change.
 phase change.
 nuclear change.

anonymous · Answer

I would say chemical change but I'm not entirely sure. I hope this helps!

anonymous · Answer

Physical change: does cutting a piece of paper or smashing a rock in half with a hammer produce an odor (that wasn't already there)?

Phase change: does melting water ice, or boiling water produce an odor?

As far as nuclear change, I'm not exactly sure whether or not that produces an odor.

I can tell you with certainty though that the production of an odor is indicative of a chemical change

anonymous · Answer

okay thanks so much that did help

anonymous · Answer

Chem