\[
\begin{array}{|c|c|}
\hline
\text{molecular formula} & \text{name of compound} \\
\hline
\mathrm{SiO} & \boxed{\text{silicon monoxide}} \\
\hline
\mathrm{SiO}_{2} & \boxed{\text{silicon dioxide}} \\
\hline
\mathrm{SO}_{2} & \boxed{\text{sulfur dioxide}} \\
\hline
\mathrm{SO}_{3} & \boxed{\text{sulfur trioxide}} \\
\hline
\mathrm{NH}_{3} & \boxed{\text{ammonia}} \\
\hline
\end{array}
\]