B: Cu, BaO, Si, Mg, Fe
C: Cu, Mg, Fe, BaSiO3
D: Ba(OH)2 dư
G: CuO, MgO, Fe3O4
T: H2
Các PTHH:
$CuO$ + $CO$ (t*)-> $Cu$ + $CO_2$
$SiO_2$+ $2CO$ (t*)-> $Si$ + $2CO_2$
$FeO$ + $CO$ (t*)-> $Fe$+ $CO_2$
$BaO$ + $H_2O$ -> $Ba(OH)_2$
$Ba(OH)_2$ + $Si$ + $H_2O$ -> $BaSiO_3$ + $2H_2$
$Cu$+ $\frac{1}{2}$ $O_2$ (t*)-> $CuO$
$Mg$ + $\frac{1}{2}$ $O_2$ (t*)-> $MgO$
$3Fe$ + $2O_2$ (t*)-> $Fe_3O_4$
$Mg$ + $2HCl$ -> $MgCl_2$ + $H_2$
$Fe$ + $2HCl$ -> $FeCl_2$ + $H_2$
$BaSiO_3$ + $2HCl$ -> $BaCl_2$ + $H_2SiO_3$