Equation A: 3H2SO4+2AL ---> AL2(SO4)3+3H2 For the reactants we have: 6 moles of hydrogen 3 moles of sulphur 12 moles of oxygen 2 moles of aluminum For the products we have: 2 moles of aluminum 3 moles of sulphur 12 moles of oxygen 6 moles of hydrogen Comparing the number of moles of each element in the reactants and products side of the equation, we can see that this equation is balanced
Equation B: 2KCL+Pb(NO3)2 ---> KNO3 +PbCl2 For the reactants we have: 2 moles of K 2 moles of Cl 1 mole of Pb 2 moles of N 6 moles of O For the products we have: 1 mole of K 1 mole of N 3 moles of O 1 mole of Pb 2 moles of Cl Comparing the number of moles of each element in the reactants and products side of the equation, we will find that K,N and O are not balanced. Therefore, this equation is not balanced.
