Question

Balance the equation H2+O2=H2O

Answer 1

Balancing equation

Explanation:

• In the given reaction, hydrogen is reacting with oxygen to produce water.
• The chemical equation involved is

$H_2O+O_2\rightarrow H_2O$

• When the number of atoms for the reactant side is calculated it gives:

H = 2

O = 2

• When the number of atoms for the product side is calculated it gives:

H = 2

O = 1

• The obtained result indicates that the oxygen atom is not equal on both sides. Thus the reaction is not balanced.
• The balanced reaction has the number of atoms involved in reaction in reactants as well as the product is equal.
• To make both side equal some changes must be made as shown in the balanced equation is

$2H_2+O_2\rightarrow 2H_2O$

• For the above equation, the number of atoms in the reactants is:

H = 4

O = 2

• The number of atoms in products is:

H = 4

O = 2

• As the number of atoms in the reactants side is equal to the number of atoms in the product side, the reaction is balanced.

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Answer 2

H=2

O=2

in first eqn.

but H=2 and O=1 in second eqn.

so to balance both sides

H2 + O2 = 2H2O

so, this is your answer

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