Em tham khảo nha
\(\begin{array}{l}
a)\\
CTHH:{S_x}{O_y}\\
\% {m_O} = \dfrac{3}{2}\% {m_S}\\
\dfrac{{y{M_O}}}{{{M_A}}} \times 100\% = \dfrac{3}{2} \times \dfrac{{x{M_S}}}{{{M_A}}} \times 100\% \\
\Rightarrow y{M_O} = \dfrac{3}{2} \times x{M_S}\\
\Rightarrow \dfrac{x}{y} = \dfrac{{16}}{{48}} = \dfrac{1}{3}\\
\Rightarrow x = 1,y = 3\\
CTHH:S{O_3}\\
b)\\
CTHH:{S_x}{O_y}\\
\% {m_O} = \% {m_S}\\
\frac{{y{M_O}}}{{{M_B}}} \times 100\% = \dfrac{{x{M_S}}}{{{M_B}}} \times 100\% \\
\Rightarrow y{M_O} = x{M_S}\\
\Rightarrow \dfrac{x}{y} = \dfrac{{16}}{{32}} = \dfrac{1}{2}\\
\Rightarrow x = 1,y = 2\\
CTHH:S{O_2}
\end{array}\)
