Viết PTHH:
a, NaOH (1) -> Na2SO4 (2) -> NaOH (3) -> Cu(OH)2 (4) -> CuO
b, ZnSO4 (1) -> ZnCl2 (2) -> Zn(OH)2 (3) -> ZnO (4) -> Zn (NO3)2
c, Cu(OH)2 (1) -> CuSO4 (2) -> Na2SO4 (3) -> NaCl (4) -> NaNO3
Loga
Sinh Học lớp 12
