\altaffiliation
Asharedfootnote\altaffiliationCurrentaddress:Someotherplace,Othertöwn,Germany\altaffiliationAsharedfootnoteDepartmentofChemistry,SecondUniversity,NearbyTownDepartmentofChemistry,SecondUniversity,NearbyTownAdemonstrationoftheachemsoLaTeX class11Afootnoteforthetitle\keywordsAmericanChemicalSociety,LaTeX Charts, figures and schemes do not necessarily have to be labelled or captioned. However, tables should always have a title. It is possible to include a number and label for a graphic without any title, using an empty argument to the \caption macro.
The use of the different floating environments is not required, but it is intended to make document preparation easier for authors. In general, you should place your graphics where they make logical sense; the production process will move them if needed.

## Math(s)

The achemso class does not load any particular additional support for mathematics. If packages such as amsmath are required, they should be loaded in the preamble. However, the basic LaTeX math(s) input should work correctly without this. Some inline material \(y=mx+c\) or \(1+1=2\) followed by some display.
\begin{equation} A=\pi r^{2}\nonumber \\ \end{equation}
It is possible to label equations in the usual way (Eq. \ref{eqn:example}).
\begin{equation} \label{eqn:example}\frac{\mathrm{d}}{\mathrm{d}x}\,r^{2}=2r\\ \end{equation}
This can also be used to have equations containing graphical content. To align the equation number with the middle of the graphic, rather than the bottom, a minipage may be used.
\begin{equation} \\ \end{equation}