The value of x in the following reaction is ______.
Keeping in mind that a balanced chemical equation has an equal number of atoms of each element on both the sides, let us balance the given equation.
Number of H atoms = 4, number of O atoms = 2 and number of Na atoms = 2
Number of H atoms = 2+x, number of O atoms = x and number of Na atoms = x
Putting x=2 balances the given equation.