Question

two iron atoms for every three oxygen atoms
express your answer as a chemical formula.
a chemical reaction does not occur for this question

Explanation:

Step1: Write the symbols of elements

The symbol for iron is \(Fe\) and for oxygen is \(O\).

Step2: Use the ratio to write the formula

Given the ratio of iron atoms to oxygen atoms is \(2:3\). In a chemical formula, the sub - script represents the number of atoms of each element. So the chemical formula is \(Fe_2O_3\).

Answer:

\(Fe_2O_3\)