Đáp án + Giải thích các bước giải:

$\begin{array}{|c|c|c|}\hline &Na&K&Cu(II)&Zn&Al\\ \hline O&Na_2O&K_2O&CuO&ZnO&Al_2O_3\\ \hline OH&NaOH&KOH&Cu(OH)_2&Zn(OH)_2&Al(OH)_3\\ \hline NO_3&NaNO_3&KNO_3&Cu(NO_3)_2&Zn(NO_3)_2&Al(NO_3)_3\\ \hline SO_4&Na_2SO_4&K_2SO_4&CuSO_4&ZnSO_4&Al_2(SO_4)_3\\ \hline S(II)&Na_2S&K_2S&CuS&ZnS&Al_2S_3\\\hline\end{array}$

Hàng $O:$ natri oxit / kali oxit / đồng (II) oxit / kẽm oxit / nhôm oxit

Hàng $OH:$ natri hiđroxit / kali hiđroxit / đồng (II) hiđroxit / kẽm hiđroxit / nhôm hiđroxit

Hàng $NO_3:$ natri  nitrat / kali nitrat / đồng (II) nitrat / kẽm nitrat / nhôm nitrat

Hàng $SO_4:$ natri sunfat / kali sunfat / đồng (II) sunfat / kẽm sunfat / nhôm sunfat

Hàng $S(II):$ natri sunfua / kali sunfua / đồng (II) sunfua / kẽm sunfua / nhôm sunfua

Đáp án:

`↓` 

Giải thích các bước giải:

\begin{array}{|c|c|c|}\hline \text{}&\text{$Na$}&\text{$K$}&\text{$Cu(II)$}&\text{$Zn$}&\text{$Al$}\\\hline \text{$O$}&\text{$Na_2O$}&\text{$K_2O$}&\text{$CuO$}&\text{$ZnO$}&\text{$Al_2O_3$}\\\hline \text{$OH$}&\text{$NaOH$}&\text{$KOH$}&\text{$Cu(OH)_2$}&\text{$Zn(OH)_2$}&\text{$Al(OH)_3$}\\\hline \text{$NO_3$}&\text{$NaNO_3$}&\text{$KNO_3$}&\text{$Cu(NO_3)_2$}&\text{$Zn(NO_3)_2$}&\text{$Al(NO_3)_3$}\\\hline \text{$SO_4$}&\text{$Na_2SO_4$}&\text{$K_2SO_4$}&\text{$CuSO_4$}&\text{$ZnSO_4$}&\text{$Al_2(SO_4)_3$}\\\hline \text{$S(II)$}&\text{$Na_2S$}&\text{$K_2S$}&\text{$CuS$}&\text{$ZnS$}&\text{$Al_2S_3$}\\\hline\end{array}

`@` `Na_2O:` Natri oxit

       `K_2O:` Kali oxit

       `CuO:` Đồng (II) oxit

       `ZnO:` Kẽm oxit

       `Al_2O_3:` Nhôm oxit

`@` `NaOH:` Natri hidroxit

       `KOH:` Kali hidroxit

       `Cu(OH)_2:` Đồng (II) hidroxit

       `Zn(OH)_2:` Kẽm hidroxit

       `Al(OH)_3:` Nhôm hidroxit

`@` `NaNO_3:` Natri nitrat

       `KNO_3:` Kali nitrat

       `Cu(NO_3)_2:` Đồng (II) nitrat

       `Zn(NO_3)_2:` Kẽm nitrat

       `Al(OH)_3:` Nhôm nitrat

`@` `Na_2SO_4:` Natri sunfat

      `K_2SO_4:` Kali sunfat

      `CuSO_4:` Đồng (II) sunfat

      `ZnSO_4:` Kẽm sunfat

      `Al_2(SO_4)_3:` Nhôm sunfat

`@` `Na_2S:` Natri sunfua

       `K_2S:` Kali sunfua

       `CuS:` Đồng (II) sunfua

       `ZnS:` Kẽm sunfua

       `Al_2S_3:` Nhôm sunfua