[W] Ethane (C2H6) burns oxygen (O2) to produce carbon dioxide (CO2) and water vapor (H2O) according to the chemical formula x1C2H6 + x2O2 → x3CO2 + x4H2O. (a) Make a vector representing each molecule which lists the number of each atom in the molecule. (b) Represent this reaction homogeneous vector equation. (Remember to get all the variables on the same side of the equal sign.) (c) Solve the system; put your answer in parametric vector form. (d) What is the minimum number of each molecule needed to balance the equation?