A theory must be supported by many different experiments.
The organism would no longer grow.
I think Alcohol would be the correct answer, but i'm not too sure since my mind is fuzzy about chemistry
Yes. If this is the balanced equation:
AlCl3 + 3Na —— 3NaCl + Al
then Al was reduced from a 3+ oxidation (to neutralize the 3- from the chlorine) to a 0 oxidation (elemental ground state).