cho các ooxxit p2o5, co, fe3o4, al2o3, co2 , co .a vt pt tác dụng vs h20.b vt pt tác dụng vs hcl.c tác dụng vs đ naoh

$\text{→ Đáp án + Giải thích các bước giải:}$

$\text{a)}$

$\text{$P_2O_5$ + $3H_2O$ → $2H_3PO_4$.}$

$\text{$CO_2$ + $H_2O$ → $H_2SO_3$}$

$\text{b)}$

$\text{HCl :}$

$\text{$Fe_3O_4$ + 8HCl → $FeCl_2$ + $2FeCl_3$ + $4H_2O$.}$

$\text{$Al_2O_3$ + 6HCl → $2AlCl_3$ + $3H_2O$}$

$\text{NaOH :}$

$\text{6NaOH + $P_2O_5$ → $2Na_3PO_4$ + $3H_2O$}$

$\text{2NaOH + $P_2O_5$ + $H_2O$ → $2NaH_2PO_4$}$

$\text{4NaOH + $P_2O_5$ → $2Na_2HPO_4$ + $H_2O$}$

$\text{$Al_2O_3$ + 2NaOH $\xrightarrow{t^o}$ $2NaAlO_2$ + $H_2O$}$

$\text{$Al_2O_3$ + 2NaOH + $3H_2O$ → $2NaAl(OH)_4$}$

$\text{$CO_2$ + 2NaOH → $Na_2CO_3$ + $H_2O$}$

$\text{$CO_2$ + NaOH → $NaHCO_3$.}$