Answer:
MnO2 + 2HCl -> MnCl2 + 2H2O + Cl2
Step-by-step explanation:
Use the appropriate chemical formulas to write the imbalanced equation.
Determine how many atoms of each element there are on both sides of the equation.
Determine the unbalanced components.
Begin balancing the components on one side of the equation that are present in a single molecule.
Verify that each component is balanced. If not, change the coefficients of the six molecules so each element has an equal amount of atoms on both sides.
Verify to make sure the coefficients are in the lowest whole-number ratio.
Verify once more that the equation is balanced, with an equal number of each sort of atom on both sides.
By adding coefficients of 2, 2, and 1 to the molecules, for instance, the equation MnO2 + HCl -> MnCl2 + H2O + Cl2 can be balanced to become MnO2 + 4HCl -> 2MnCl2 + 2H2O + Cl2.