D
dunga4k89


hoa tan 0,1 mol FeCO3 vao dd HNO3 loang (vua du) duoc ddX va khi NO (sp khu duy nhat). them H2SO4 loang du vao X thi dd thu duoc co the hoa tan toi da bao nhieu gam Cu?
A.3,2g B.6,4g C.32g D.60,8g
A.3,2g B.6,4g C.32g D.60,8g