what is balanced and unbalanced equation?

balanced equations are those in which the total mass of the reactants is equal to the total mass of the product and unbalanced equations are those  in  which the total mass of the reactants is  not equal to the total mass of the products 

balanced equation is that equation in which the no. of atoms of each element on reactant side is equal to the no. of atoms of each element on product side and an unbalanced eq. is exactly opp. to that of a balanced eq.

a-d=ad

AD-DA=ASD

In balanced equation, the total mass in the reactantside will be equal to the total mass in the product side or total mass in LHS will be equal to that in RHS.In unbalanced chemical equation, the total mass of reactants will not be equal to the total mass in productside or total mass in LHS will not be equal to that in RHS.

when the equal no. of atom in RHS and LHS in an equation then it is to be called balanced equation while if the no. of atom on both side is unequal then it is called unbalanced equation.

+2

Balanced equation means that the equation should be balanced on both the sides, that is the left hand side should be equal to the right hand side. On the other hand unbalanced equation means when the equqtion is not balanced on both the sides ,that is ,when the left hand side is not equal to the right hand side.