\documentstyle[11pt,chemtex,widepage]{report}
  \def\LATEX{\LaTeX}
  \let\TEX = \TeX
  \setcounter{totalnumber}{4}
  \setcounter{topnumber}{2}
  \setcounter{bottomnumber}{2}
  \renewcommand{\topfraction}{.5}
  \renewcommand{\bottomfraction}{.5}
  \setlength{\oddsidemargin}{0cm}
  \setlength{\textwidth}{6.5in}         %right margin is now 1in
  \setlength{\topmargin}{0cm}
  \setlength{\headheight}{0cm}
  \setlength{\textheight}{8.5in}
  \setlength{\parindent}{1cm}
  \raggedbottom
  \begin {document}
  \textfont1=\tenrm
  \initial
\title{Typesetting Chemical Equations using \LaTeX}
\author{}
\date{}
\maketitle
 
\tableofcontents
\hbadness 10001
 \input{chap3A}
 \input chap4
 \input chap6A
 \input chap6B
 \input chap6C
 \input chap6D
\appendix
 \input appdc
 \input appdb
\end{document}