aniqlang.

A) 75


54. (v16-106-30_xCaC03 = yCaC03 + + zCaO + zC02 ifodada x, y, z, z koeffitsiyentlarning eng kichik butun qiymatdagi nisbatlari 2:1:1:1 bolsa, reaksiyaning mahsulot unumini (%) aniqlang. A) 75 B) 60 C)80 D)50