Final answer:
To balance the chemical equation Al+Mn O2 → Al2O2+Mn, put coefficients to ensure the number of each type of atom is the same on both sides of the equation.
Step-by-step explanation:
To balance the given chemical equation Al+Mn O2 → Al2O2+Mn, we need to ensure that the number of each type of atom is the same on both sides of the equation. To do this, we can adjust the coefficients in front of each compound.
Start by balancing the metals. There is one Al atom on the left side and two Al atoms on the right side, so we need to put a coefficient of 2 in front of the Al on the left side.
Next, balance the oxygen atoms. There is one O atom in the MnO2 on the left side and two O atoms in the Al2O2 on the right side. To balance the O atoms, we need to put a coefficient of 2 in front of the MnO2 on the left side.
Finally, check the overall balance. There are 2 Al atoms on the left side and 2 Al atoms on the right side. There are 4 O atoms on the left side and 4 O atoms on the right side. And there is one Mn atom on each side.
The balanced chemical equation is:
2 Al + MnO2 → Al2O2 + Mn