5. Balance the equation: Al+HClarrow AlCl_(3)+H_(2) What are the correct coefficients? a) 2,6,2,3 b) 1,3,1,2 C) 3,2,1,3 d) 1,1,1,1

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.Let's start by counting the number of atoms of each element on both sides of the equation:On the left side:- Aluminum (Al): 1 atom- Hydrogen (H): 1 atom- Chlorine (Cl): 1 atomOn the right side:- Aluminum (Al): 1 atom- Hydrogen (H): 2 atoms- Chlorine (Cl): 3 atomsTo balance the equation, we need to adjust the coefficients of the reactants and products. Let's start by balancing the chlorine atoms. We have 1 chlorine atom on the left side and 3 chlorine atoms on the right side. To balance the chlorine atoms, we need to multiply the coefficient of HCl by 3: Now let's count the number of atoms again:On the left side:- Aluminum (Al): 1 atom- Hydrogen (H): 3 atoms- Chlorine (Cl): 3 atomsOn the right side:- Aluminum (Al): 1 atom- Hydrogen (H): 2 atoms- Chlorine (Cl): 3 atomsWe have balanced the chlorine atoms, but we still have an imbalance in the hydrogen atoms. We have 3 hydrogen atoms on the left side and 2 hydrogen atoms on the right side. To balance the hydrogen atoms, we need to multiply the coefficient of HCl by 2: Now let's count the number of atoms again:On the left side:- Aluminum (Al): 1 atom- Hydrogen (H): 6 atoms- Chlorine (Cl): 6 atomsOn the right side:- Aluminum (Al): 1 atom- Hydrogen (H): 6 atoms- Chlorine (Cl): 3 atomsWe have balanced the equation by adjusting the coefficients of the reactants and products. The correct coefficients are 2, 6, 2, and 3.Therefore, the correct answer is option a) .