u/Cautious-Review7225

(Couldn't put in a PDF file into reddit, so I added the whole text instead)

\documentclass{article}

\usepackage[utf8]{inputenc}

\usepackage{chemformula}

\title{author's text}

\author{junkyard engineer}

\date{April 2026}

\begin{document}

\maketitle

\section{how \ch{CO2} is made}

\ch{CO2} is a gas made from burning inorganic or organic carbons including coal, and coke fuel.

\section{author's info}

the author named "junkyard engineer" is ten years old

and is a specialist in chemistry and engineering.

\end{document}