\(MnO_2+4HCl_{đặc,nóng}\rightarrow MnCl_2+Cl_2+2H_2O\\ H_2+Cl_2\rightarrow\left(t^o\right)2HCl\\ NaOH+HCl\rightarrow NaCl+H_2O\\ 2NaCl\rightarrow\left(đpnc\right)2Na+Cl_2\\ 2Al+3Cl_2\rightarrow\left(t^o\right)2AlCl_3\\ AlCl_3+3KOH\rightarrow Al\left(OH\right)_3\downarrow+3KCl\\ Al\left(OH\right)_3+3HCl\rightarrow AlCl_3+3H_2o\\ AlCl_3+3AgNO_3\rightarrow Al\left(NO_3\right)_3+3AgCl\downarrow\)
\(MnO_2\underrightarrow{1}Cl\underrightarrow{2}HCl\underrightarrow{3}NaCl\underrightarrow{4}Cl_2\underrightarrow{5}AlCl_3\underrightarrow{6}Al\left(OH\right)_3\underrightarrow{7}AlCl_3\underrightarrow{8}AgCl\)
(1) \(MnO_2+4HCl_{đặc}\underrightarrow{t^o}MnCl_2+Cl_2+2H_2O\)
(2) \(H_2+Cl_2\xrightarrow[ánh.sáng]{t^o}2HCl\)
(3) \(NaOH+HCl\rightarrow NaCl+H_2O\)
(4) \(2NaCl+2H_2O\xrightarrow[có.màng.ngăn]{điện.phân}2NaOH+H_2+Cl_2\)
(5) \(2Al+3Cl_2\underrightarrow{t^o}2AlCl_3\)
(6) \(AlCl_3+3NaOH\rightarrow Al\left(OH\right)_3+3NaCl\)
(7) \(Al\left(OH\right)_3+3HCl\rightarrow AlCl_3+3H_2O\)
(8) \(AlCl_3+3AgNO_3\rightarrow Al\left(NO_3\right)_3+3AgCl\)
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