Write the balanced chemical reaction for the rusting of iron. How do I start? PLEASE help!!?

Question

First of all: I don't want the answer so much as I want help knowing how to figure it out. I'm not trying to cheat, honest. Here's the question:

In this experiment, the acidic vinegar dissolved a protective coating off the steel wool, allowing the oxidation of the steel to begin. This process is called rusting. In this reaction, iron is combined with oxygen gas to form iron oxide. Hint: An iron (III) product is formed.

Write the balanced chemical reaction for the rusting of iron.

I have a lot of trouble starting it out. I'm never sure how to begin this kind of problem. Assistance is GREATLY appreciated!

Answer 1

4Fe(III) + 3O2 = 2Fe2(III)O3

Answer 2

Stnicholas is correct except that the name of Fe2O3 is actually ferric oxide (same as iron(III) oxide) instead of ferrous oxide.  Ferrous oxide is FeO or iron(II) oxide.

Answer 3

Ferrous Oxide (this is Iron (III) Oxide) is the product.  The acetic acid used to remove the coating will not be part of the reaction.

You know you start with Iron (III) and Oxygen and that when they're put together you get Ferrous Oxide.

Fe + O2 => Fe2O3

Then balance the equation:

4 Fe + 3 O2 => 2 Fe2O3