Write the steps involved in the balancing a chemical reaction. Give an examples balancing the chemical equation.

Explanation

i) A chemical equation in which the number of atoms of different elements on the reactant side are same as those on product side is called a balanced reaction.
ii) Chemical equation for formation of water is `H_(2)+O_(2)rarr H_(2)O`.
iii)Balancing the equation, `H_(2)+O_(2)rarr H_(2)O` step by step.
Step :1
a) Write the equation with the correct chemical formulae for each reactant and product.
Eg : In the reaction of hydrogen with oxygen to yield water. You can write chemical equation as follows : `H_(2)+O_(2)rarrH_(2)O`
Step : 2 a) After writing the molecule formulae of the substances the equation is to be balanced.
b) We should put suitable numbers as the coefficients before the formula to balance the total number of atoms on both sides of an arrow mark.
c) For this we should not change the ratio of atom in the molecule of a substance i.e., subscript of atom.
Eg : Should be added before molecular formula of hydrogen and another 2 should be added before water molecule. `2H_(2)+O_(2)rarr 2H_(2)O`
d) Therefore the equation is balanced.
Step :3
a) Check whether all the coefficients of the substances has a common factor.
b) If so, divide those by common factor to obtain lowest ratio of the substances.
Eg : In the above balanced equation `2H_(2)+O_(2)rarr 2H_(2)O,` no common factor of the coefficients.
c) Hence no need to divide.
Step : 4
a) Verify the equation for the balancing of atoms on both sides of the equation.
Eg : In the above equation number of atoms in left side is 6 and right side is 6.
b) Both are equal.
c) Hence the equation is balanced.