A chemical equation is the representation of the chemical reactions. The LHS consists of the reactants and the RHS consists of the products. Balancing chemical equation is the process of equalising the number of each element in the reactants to the products.
Based on the law of conservation of mass, the mass of the product should be equal to mass of the reactant. Balancing any chemical equations is made simple with this chemical formula balancer alias calculator. Enter the equation directly into the Balancing Chemical Equations Calculator to balance the given chemical equations. You can also enter the equations by clicking the elements in the table given in the chemical equation balancer. Chemical equations must be balanced with respect to all atoms and the atoms must exist in real compounds.
Consider an equation N2 + H2 = NH3
Compare the elements in LHS and RHS
To balance, add 2 to the RHS,
Equation : N2 + H2 = 2NH3
Add 3 to H in LHS,
Equation : N2 + 3H2 = 2NH3
Hence it is balanced.