Balance this equation underline ( )Al+underline ( )HClarrow underline ( )H_(2)+underline ( )AlCl_(3) 2,6,3,2 it is already balanced 1,2,3,4 1,4,6,1

To balance the chemical equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation.Given equation: Let's start by balancing the aluminum (Al) atoms. We have 1 Al atom on the left side and 1 Al atom on the right side. So, the coefficient for Al should be 1.Next, let's balance the chlorine (Cl) atoms. We have 1 Cl atom on the left side and 3 Cl atoms on the right side. To balance the Cl atoms, we need to have 3 HCl molecules on the left side.Now, let's balance the hydrogen (H) atoms. We have 3 H atoms on the left side and 2 H atoms on the right side. To balance the H atoms, we need to have 3 H2 molecules on the right side.So, the balanced equation is: Therefore, the correct answer is: .