Which of these equations I balanced

A. 3H2SO4+2AL - - - > AL2 (SO4) 3+3H2

B. 2KCL+Pb (NO3) 2 - - - > KNO3 + PbCl2

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.