To determine how many atoms of oxygen will be in the products, we first need to look at a possible reaction involving iron (Fe), oxygen (O), and carbon (C).
A likely reaction involving these elements is the formation of iron oxides. One common reaction could be:
In this example, the 6 atoms of oxygen are used to form iron oxides. Each iron (Fe) can combine with oxygen (O) to form different oxides like FeO or Fe2O3, depending on the conditions, but since we are asked only how many atoms of oxygen are in the products after the reaction starts with 6 atoms of O, we'll focus on that.
From the given information and the assumption made, if we have 6 atoms of oxygen in the reactants, they would be split between the formation of iron oxide or any other products, but they still remain as atoms contributing to the products.
Therefore, there will still be 6 oxygen atoms accounted for in the products.
The answer is B. 6.