(1): \(2HCl\rightarrow H_2+Cl_2\)
(2): \(3Cl_2+2Fe\rightarrow2FeCl_3\)
(3): \(FeCl_3+3NaOH\rightarrow Fe\left(OH\right)_3+3NaCl\)
(4): \(NaCl+H_2SO_4\rightarrow HCl+NaHSO_4\)
(5): \(2HCl+CuSO_4\rightarrow CuCl_2+H_2SO_4\)
(6): \(CuCl_2+2AgNO_3\rightarrow2AgCl+Cu\left(NO_3\right)_2\)
\(MnO_2+4HCl_{đặc,nóng}\rightarrow MnCl_2+Cl_2+2H_2O\\ 2Fe+3Cl_2\rightarrow\left(t^o\right)2FeCl_3\\ FeCl_3+3NaOH\rightarrow Fe\left(OH\right)_3\downarrow+3NaCl\\ NaCl+H_2SO_{4\left(đặc\right)}\left(250^oC\right)NaHSO_4+HCl\\ CuO+2HCl\rightarrow CuCl_2+H_2O\\ CuCl_2+2AgNO_3\rightarrow Cu\left(NO_3\right)_2+2AgCl\downarrow\)
