$\text{Đáp án:}$
`-` CTHH:
`*` Oxit axit: Phi Kim `+` Oxit $\text{[VD: $SO_2$, $SO_3$, $CO_2$,...]}$
`*` Oxit bazơ: Kim Loại `+` Oxit $\text{[VD: $FeO$, $Na_2O$, $CuO$,...]}$
`*` Axit: `H_2X` $\text{[VD: $HCl$, $H_2S$, $HNO_3$,...]}$
`*` Bazơ: `M(OH)_n` $\text{[VD: $Ba(OH)_2$, $Ca(OH)_2$, $KOH$,...]}$
`*` Muối: `M_aX_n` $\text{[VD: $CaCO_3$, $KNO_3$, $K_2SO_4$,...]}$
$\color{Red}{\text{#blackwolf4869}}$
