Answer : The value of coefficients are, and the balanced chemical reaction will be,
Explanation :
Balanced chemical reaction : It is defined as the number of atoms of individual elements present on reactant side must be equal to the product side.
The given unbalanced chemical reaction is,
This chemical reaction is an unbalanced reaction because in this reaction, the number of atoms are not balanced.
In order to balanced the chemical reaction, the coefficient 4 is put before the and the coefficient 2 is put before the
That means, the value of coefficients are,
Thus, the balanced chemical reaction will be,