a. CTHH: FeCl2 . PTK : 56 + 35.5.2 = 126 (g/mol)
b. CTHH: Ca3(PO4)2. PTK: 40.3 + (31+16.4).2 = 310 (g/mol)
c. CTHH: Cu(NO3)2. PTK: 64 + (14+16.3) . 2 = 188 (g/mol)
a)FeCl2
PTK = 56 + 35.5.2 = 126 (đvC)
b)Ca3(PO4)2
PTK = 40.3 + (31+16.4).2 = 310 (đvC)
c)Cu(NO3)2
PTK = 64 + (14+16.3) . 2 = 188 (đvC)
a. CTHH: FeCl2 . PTK : 56 + 35,5.2 = 126 (g/mol)
b. CTHH: Ca3(PO4)2. PTK: 40.3 + (31+16.4).2 = 310 (g/mol)
c. CTHH: Cu(NO3)2. PTK: 64 + (14+16.3) . 2 = 188 (g/mol)
FECL2 PHẢI LÀ 127 NHÀ THEO PHONG TRÀO SAI RỒI