Question

Balance the given equation:

${\mathrm{Na}}_2\mathrm{O}+{\mathrm{H}}_2\mathrm{O}\to \mathrm{NaOH}$

Answer 1

Balanced equation: the chemical equation in which the number of atoms of each element on the reactant side as well as the product side is equal are known as a balanced equation.

Balancing the following chemical equation:

${\mathrm{Na}}_2\mathrm{O}+{\mathrm{H}}_2\mathrm{O}\to \mathrm{NaOH}$

Steps to Balance the chemical equation:

• Count the number of atoms of each element on either side. Now first balance the compound with the maximum number of atoms

A number of atoms of each element on the reactant side:

$\mathrm{Na}=2\mathrm{O}=2\mathrm{H}=2$

A number of atoms of each element on the product side:

$\mathrm{Na}=1\mathrm{O}=1\mathrm{H}=1$

• As the number of oxygen and hydrogen and sodium are not equal on both the reactant and product sides so we will right-hand side by 2 on the reactant side. The reaction becomes:

${\mathrm{Na}}_2\mathrm{O}\left(\mathrm{s}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)\to 2\mathrm{NaOH}\left(\mathrm{aq}\right)$

Now all the atoms on both the reactant and product sides are equal. Hence equation is balanced.