$A: Al$
$B: AlCl_3$
$D: Al(NO_3)_3$
$E: NaAlO_2$
$G: Al(OH)_3$
$T: Al_2O_3$
PTHH:
(1) $2Al+6HCl\to 2AlCl_3+3H_2$
(2) $AlCl_3+3AgNO_3\to 3AgCl+Al(NO_3)_3$
(3) $Al(NO_3)_3+4NaOH\to 3NaNO_3+NaAlO_2+2H_2O$
(4) $NaAlO_2+CO_2+H_2O\to Al(OH)_3+NaHCO_3$
(5) $2Al(OH)_3\xrightarrow{{t^o}} Al_2O_3+3H_2O$
(6) $Al_2O_3+6HNO_3\to 2Al(NO_3)_3+3H_2O$
(7) $2Al(NO_3)_3\xrightarrow{{t^o}} Al_2O_3+6NO_2+\dfrac{3}{2}O_2$
(8) $2Al_2O_3\xrightarrow{{\text{đpnc}}} 4Al+3O_2$
