% Created 2022-01-18 Tue 16:52
% Intended LaTeX compiler: pdflatex
\documentclass{scrartcl}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{graphicx}
\usepackage{longtable}
\usepackage{wrapfig}
\usepackage{rotating}
\usepackage[normalem]{ulem}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{capt-of}
\usepackage{hyperref}
\usepackage{xcolor}
\usepackage{tikz}
\usepackage{soul}
\usepackage{listings}
\usepackage[version=3]{mhchem}
\usepackage{doi}
\usepackage{amsmath}
\usepackage[british, english]{babel}
\author{Eric S Fraga}
\date{\today}
\title{}
\hypersetup{
 pdfauthor={Eric S Fraga},
 pdftitle={},
 pdfkeywords={},
 pdfsubject={},
 pdfcreator={Emacs 29.0.50 (Org mode 9.5.2)}, 
 pdflang={English}}
\begin{document}

\tableofcontents

A bare table gets exported properly:

\begin{tabular}{rr}
1 & 2\\
3 & 4\\
\end{tabular}

Now a table that is the result of some code:

\begin{tabular}{rr}
1 & 2\\
3 & 4\\
\end{tabular}

and finally a table from some code but wrapped:

\begin{results}
\begin{center}
\begin{tabular}{rr}
1 & 2\\
3 & 4\\
\end{tabular}
\end{center}
\end{results}

The last table is centred unfortunately.
\end{document}