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Question

How would you balance the following equation:
H2O2H2O+O2


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Solution

Balancing the chemical equation

  • Given the chemical equation is
    H2O2(l)HydrogenperoxideH2O(l)Water+O2(g)Oxygen
  • To balance the given chemical equation we need to verify the Law of Conservation of Mass
  • Write down the number of atoms

Write down the number of atoms of each element present on both reactant and product side.

Atom

Reactant side

Product side

H22
O23
  • Add coefficients to balance the mass in a chemical equation
    Add 2 molecules of Hydrogen peroxide (H2O2) and 2 molecules of Water (H2O).
  • This reaction is a decomposition reaction of Hydrogen peroxide into Water and Oxygen.
  • The balanced chemical equation is: 2H2O2(aq)Hydrogenperoxide2H2OWater(l)+O2(g)Oxygen

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