Question

N2(g) +O2(g) —> N2O5(g)

Answer 1

Answer:

2N₂(g) +   5O₂(g) ----------> 2N₂O₅(g)

Nitrogen N2(g) get an coefficient of  2.

Explanation:

Reaction Given

                 N₂(g) +O₂(g) —> N₂O₅(g)

Balanced Equation =?

Balance Chemical Equation:

A balanced chemical equation is that in which the number of the reactant atoms equal to the number of the product atom.

For example if the Nitrogen at the reactant side is 3, the number of Nitrogen must be 3 on the product side.

Check the chemical equation and count the number of atoms at the reactant side and product side.

if the number of atoms of the reactants equal to the number of atoms of  products then the reaction is balanced but if not equal then reaction is not balanced

Balancing is an trial and error process to get a balance reaction.

First we count the number of atoms of reactant and product

Number of atoms of Reactant:

N = 2

O = 2

Number of atoms of Product:

N = 2

O = 5

So this is not a balance equation as the atoms of the reactant atom not equal to the product atoms.

Nitrogen atoms are 2 on both reactant and product side

But

Oxygen atoms are 2 on reactant and 5 on product side that is not equal.

Now balance the equation:

                         2N₂(g) +   5O₂(g) ----------> 2N₂O₅(g)

Now again count the number of atoms of reactant and product

Number of atoms of Reactant:

N = 4

O = 10

Number of atoms of Product:

N = 4

O = 10

So now the atoms are equal on both reactant and product side.

By balancing the reaction nitrogen N2(g) get an coefficient of  2.