Em tham khảo nha:
\(\begin{array}{l}
1)\\
NO:N(II),O(II)\\
N{O_2}:N(IV),O(II)\\
{N_2}{O_3}:N(III),O(II)\\
{N_2}{O_5}:N(V),O(II)\\
N{H_3}:N(III),H(I)\\
HCl:H(I),Cl(I)\\
{H_2}S{O_4}:H(I),S{O_4}(II)\\
{H_3}P{O_4}:H(I),P{O_4}(III)\\
Ba{(OH)_2}:Ba(II),OH(I)\\
N{a_2}S{O_4}:Na(I),S{O_4}(II)\\
NaN{O_3}:Na(I),N{O_3}(I)\\
{K_2}C{O_3}:K(I),C{O_3}(II)\\
{K_3}P{O_4}:K(I),P{O_4}(III)\\
Ca{(HC{O_3})_2}:Ca(II),HC{O_3}(I)\\
N{a_2}HP{O_4}:Na(I),HP{O_4}(II)\\
Al{(HS{O_4})_3}:Al(III),HS{O_4}(I)\\
Mg{({H_2}P{O_4})_2}:Mg(II),{H_2}P{O_4}(I)
\end{array}\)
