Physical. When you simply desolve something with water, to don't actually change it. This action can be undone.
An example of a chemical reaction is when the cells within completely change. You you burn wood, you can't go back in time and un-burn it. Does that make sense?
Answer:
2Fe + 6HC2H3O2 → 2Fe(C2H3O2)3 + 3H2
Explanation:
There you go
Answer:
8.33 moles CO2 X. 25mol O2. 16mol CO2. = 13.0 moles
A) Deer
D) Grass
Hope that helps you out (: