Chalcopyrite (CuFeS2) concentrate containing 25% Cu and 80% pyrite (FeS2) concentrate are obtained from an ore containing Me(I)O, Me(II)O.SiO2 and 2.875% CuFeS2, 8% FeS2. a. Write the process steps applied until dry concentrate as a flow chart b. Write down the reactions that take place, assuming that the concentrates you will obtain when 100 tons of ore are processed are roasted separately. c. Calculate the volume of SO' formed as a result of the roasting of the concentrates you have obtained.