Balance the following equation stepwise.
`H_aS_2O_(l)rarr H_2SO_(4(l))`

Explanation

Step I: Write the chemical equation:
`H_2S_2O_(7(l)) rarr H_2SO_(4(l))`
Step II : Compare the number of atoms of the various elements present on the two sides of the equation.

Step III: Choose the reactant or product having maximum number of atoms and equalize its atoms on both the sides. Equalize the number of atoms of reamaing elements in the reactants and products.
`H_2S_2O_7` has maximum number of atoms. First balance 'S' as it requires a smaller factor.

` Apply a factor '2' to the product `H_2SO_4H_2S_2O_(7(l))rarr 2H_2SO_(4(l))`
Check whether the equation is balanced
The nunmber of atoms of the elements in the ractanst is same as the number of atoms of those elements in the product.
Step. IV Write down the final balanced equation.
`H_2S_O_(7(l))+H_2O_((i))rarr 2H_2SO_(4(I))`