CT chung: \(N_a^{IV}O_b^{II}\)
Theo QT hóa trị ta có:
\(IV.a=II.b\Leftrightarrow\frac{a}{b}=\frac{II}{IV}=\frac{2}{4}=\frac{1}{2}\)
\(\Rightarrow\left\{{}\begin{matrix}a=1\\b=2\end{matrix}\right.\)
\(\rightarrow CTHH:NO_2\)
CT chung: NIVaOIIbNaIVObII
Theo QT hóa trị ta có:
IV.a=II.b⇔ab=IIIV=24=12IV.a=II.b⇔ab=IIIV=24=12
⇒{a=1b=2⇒{a=1b=2
→CTHH:NO2