Nothing happens because a physical change only changes the appearance of the substance, whereas a chemical change transforms the substance into something completely different.
i.e. (chemical change) wood + fire = ash
(physical change) wood + axe = smaller pieces of wood
I think this one is the organelles.
Answer:
Equilibrium is the state of balance. Where opposing forces cancel each other out and no changes are occurring.
<em>Good luck, hope this helps :)</em>
