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\begin{center}
{\Large \textbf{Chemistry}}\\
Don H. Johnson\\
\today
\end{center}

\section{Chemistry}
Chemical formulae are easily set.
\begin{equation*}
\begin{array}{c}
\ce{H2O}\\
\ce{CO2 + C -> 2CO}\\
\ce{CO2 + C <=> 2CO}\\
\cf{[Cd\{SC(NH2)2\}2].[Cr(SCN)4(NH3)2]2}
\end{array}
\end{equation*}

And now for a bond diagram.
\begin{center}
\decaheterov[af]{4==O}{1==\cf{CH3};6==\cf{H3C};9A==H;{{10}A==\lmoiety{\cf{HOCH2}}}}
\end{center}
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