Balance the following equation: NH3 + O2 → NO + H2O

By Ritesh|Updated : November 8th, 2022

The balanced equation is 2NH3 (g) + 5/2 O2 (g) → 2NO (g) + 3H2O (l). Steps to the balanced equation the NH3 + O2 → NO + H2O:

Step 1: Given chemical equation is

NH3 + O2 → NO + H2O

Step 2: The procedure used to balance the equation

balancing chemical equations the conventional way. As stated by the method:

  • Initial comparison should be made between the total number of atoms of each element on the reactant and product sides.
  • To molecules containing an element with differing atom counts on the reactant and product sides, add stoichiometric factors.
  • Each side's atom count must be balanced by the coefficient.
  • The hydrogen and oxygen stoichiometric coefficients are often given last.
  • By dividing the total number of atoms of an element present in 1 molecule of the species by the stoichiometric coefficient, one can determine the number of atoms of that element in a given species.
  • Repeat this procedure until there are an equal number of atoms of each reactive element on both the reactant and product sides.

Step 3: Balancing the given chemical equation

The given chemical equation is:

NH3 + O2→ NO + H2O

Reactant side:

  • 1 Nitrogen atom
  • 3 Hydrogen atoms
  • 2 Oxygen atoms

Product side:

  • 1 Nitrogen atom
  • 2 Hydrogen atoms
  • 2 Oxygen atoms

First, the atoms of hydrogen are balanced. After being balanced, the equation is: 2NH3 + O2 → NO + 3H2O

Atoms of nitrogen are then balanced. After being balanced, the equation is:2NH3 + O2 → 2NO + 3H2O

The oxygen atoms are balanced at this point. After being balanced, the equation is: 2NH3 + 5/2 O2 → 2NO + 3H2O

The updated equation is: 2NH3 + 5/2 O2→ 2NO + 3H2O

Reactant side:

  • 2 Nitrogen atom
  • 6 Hydrogen atoms
  • 5 Oxygen atoms

Product side:

  • 2 Nitrogen atom
  • 6 Hydrogen atoms
  • 5 Oxygen atoms

The equation is balanced because there are an equal number of all the atoms of the reacting components on both the reactant and product sides.

Hence the balanced equation is: 2NH3 (g) + 5/2 O2 (g) → 2NO (g) + 3H2O (l)

Summary:

Balance the following equation: NH3 + O2 → NO + H2O

The balanced chemical equation of NH3 + O2 → NO + H2Ois 2NH3 (g) + 5/2 O2 (g) → 2NO (g) + 3H2O (l). The equation can be balanced by making the atoms equal on both sides of the reaction.

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