When energy changes from one form to another, some energy is always changed to ОА.
sound.
ОВ.
heat.
Ос.
light.
OD
electricity

OB heat

Explanation:

Hope this helps

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."