The chemical equation for this reaction is shown below. 4Fe(s)+3O_(2)(g)arrow 2Fe_(2)O_(3)(s) Use the chemical equation to complete the statements. Iron (Fe) has a square of 4. Oxygen (O_(2)) has a square of 2. Iron (III) oxide (Fe_(2)O_(3)) has a square of 3.

The question is asking for the number of atoms of each element in the given chemical equation. In a chemical equation, the number in front of the chemical symbol or formula represents the number of atoms of that element involved in the reaction. In this case, the number of atoms of Iron (Fe), Oxygen (O2), and Iron (III) oxide (Fe2O3) are given as 4, 2, and 3 respectively. Therefore, Iron (Fe) has a number of 4, Oxygen (O2) has a number of 2, and Iron (III) oxide (Fe2O3) has a number of 3.