\textbf{218--} Common chemistry concepts such as ``molecular mass'', ``Avogadro's number'', ``ionic solid'', ``hydrogen bond'', and ``hydrophobic'' are, from right to left, applicable to which of the following substances?
\begin{itemize}
\item[(1)] $\mathrm{HF,\ NaNO_3,\ SiO_2,\ CO_2}$
\item[(2)] $\mathrm{H_2O,\ HCN,\ C(s,\ diamond),\ F_2}$
\item[(3)] $\mathrm{C_2H_{12},\ PCl_3,\ SO_2,\ F_2}$
\item[(4)] $\mathrm{C_2H_6,\ NaCl,\ C(s,\ graphite),\ CO_2}$
\end{itemize}