We know that balancing of a chemical equation is entirely based on law of conservation of mass. However the concept of Principle of Atom Conservation (POAC) can also be related to law of conservation of mass in a chemical reaction.So, POAC can also act as a technique for balancing a chemical equation.For example, for a reaction : ABC_3toAB+C_2 On applying POAC for A,B&C and relating the 3 equation, we get :(.^nABC_3)/2=(.^nAB)/2=(.^n_(c_2))/3 (n_x : number of moles of x) Thus, the coefficients of ABC_3,AB & C_2 in the balanced equation with be 2,2 & 3 respectively and the balanced chemical equation can be represented as : 2ABC_3to2AB+3C_2 Now answer the following questions : If the weight ratio C and O_2 presents 1:2 and both of reactants completely consume and form CO and CO_2 and we will obtain a gasous mixture of CO and CO_2.What would be the weight ratio of CO and CO_2 in mixture.