Unbalanced Equation:
Al + PbCl₂ → AlCl₃ + Pb
Balancing Steps:
1. Aluminum (Al): There's one Al atom on each side, so it's already balanced.
2. Lead (Pb): There's one Pb atom on each side, so it's balanced.
3. Chlorine (Cl): There are two Cl atoms on the left side (PbCl₂) and three Cl atoms on the right side (AlCl₃). To balance this, we need to adjust the coefficients.
* Place a coefficient of 3 in front of PbCl₂ on the left side: 3PbCl₂.
* Place a coefficient of 2 in front of AlCl₃ on the right side: 2AlCl₃.
4. Now we have to adjust the aluminum: Since we have 2 AlCl₃ molecules on the right side, we need 2 aluminum atoms on the left. Place a coefficient of 2 in front of Al on the left.
Balanced Equation:
2Al + 3PbCl₂ → 2AlCl₃ + 3Pb
