<u>Answer:</u> The relation between the forward and reverse reaction is 
<u>Explanation:</u>
For the given chemical equation:

The expression of equilibrium constant for above equation follows:
.......(1)
The reverse equation follows:

The expression of equilibrium constant for above equation follows:
.......(2)
Relation expression 1 and expression 2, we get:

Hence, the relation between the forward and reverse reaction is 
Coffe
Gasoline
Water
Coffe
Apple juice
A solution is any liquid
I would probably say transformation of virus like molecules
You need the unit of g however you must convert to moles before you can use the mole ratio to find the moles of iron, you used the molar mass of iron to find the grams of iron. since F e 2 o 3