To balance the chemical equation, we need to make sure that the number of atoms of each element is the same on both sides of the equation.Fe + HCl FeCl3 + H2First, balance the Fe iron atoms:1 Fe + HCl 1 FeCl3 + H2 Fe is already balanced Next, balance the Cl chlorine atoms:1 Fe + 3 HCl 1 FeCl3 + H2 3 Cl atoms on both sides Finally, balance the H hydrogen atoms:1 Fe + 3 HCl 1 FeCl3 + 1.5 H2 6 H atoms on both sides However, it's better to have whole numbers in a balanced equation, so we can multiply the entire equation by 2 to achieve this:2 Fe + 6 HCl 2 FeCl3 + 3 H2The balanced chemical equation is:2 Fe + 6 HCl 2 FeCl3 + 3 H2