Explain poac and its uses with one example?

POAC stands for Principle Of Atom Conservation which is used to solve a chemical equation.

there is no need of balancing the equation if we adopt POAC. It is based on the conservation

of mass of an atom or mole of an atom

Example KClO3 can be taken

KClO3 = KCL + O2

Moles of K IN KClO3(Reactant) = Moles of K in KCl(product)