Balance the following equation:
PbBr2 + Al2O3 → PbO + AlBr3
2PbBr2 + Al2O3 → 2PbO + 2AlBr3
To balance the given chemical equation:
Step 1: Count the number of atoms of each element on both sides of the equation.
On the left side of the equation:
Pb: 1
Br: 2
Al: 2
O: 3
On the right side of the equation:
Pb: 1
Al: 1
Br: 3
O: 1
Step 2: Start balancing the equation by adjusting the coefficients (numbers preceding the chemical formulas) of the compounds.
Let's start by balancing the Pb atoms. There is 1 Pb atom on the left and 1 on the right, so no changes are needed for Pb.
Now let's balance the Br atoms. There are 2 Br atoms on the left and 3 on the right. To balance them, place a coefficient of 3 in front of PbBr2 on the left-hand side:
3PbBr2 + Al2O3 → PbO + AlBr3
Next, let's balance the Al atoms. There are 2 Al atoms on the left and 1 on the right. To balance them, place a coefficient of 2 in front of AlBr3 on the right-hand side:
3PbBr2 + Al2O3 → PbO + 2AlBr3
Finally, let's balance the O atoms. There are 3 O atoms on the left and 1 on the right. To balance them, place a coefficient of 3 in front of PbO on the right-hand side:
3PbBr2 + Al2O3 → 3PbO + 2AlBr3
Now the equation is balanced with equal numbers of each type of atom on both sides.
To balance the equation PbBr2 + Al2O3 → PbO + AlBr3, we need to make sure that the number of atoms of each element is the same on both sides of the equation.
Let's start by balancing the lead (Pb) atoms. There is one Pb atom on the left-hand side and one Pb atom on the right-hand side. The lead atoms are already balanced.
Next, we will balance the bromine (Br) atoms. There are two Br atoms in PbBr2 on the left side, and three Br atoms in AlBr3 on the right side. To balance the Br atoms, we need to multiply PbBr2 by 3 and AlBr3 by 2:
3PbBr2 + Al2O3 → PbO + 2AlBr3
Now let's move on to balancing the aluminum (Al) atoms. There are two Al atoms in Al2O3 on the left side, and two Al atoms in AlBr3 on the right side. The aluminum atoms are already balanced.
Finally, we will balance the oxygen (O) atoms. There is one O atom in Al2O3 on the left side, and one O atom in PbO on the right side. The oxygen atoms are already balanced.
The balanced equation is:
3PbBr2 + Al2O3 → PbO + 2AlBr3