Cannot get continuous vertical lines in table environment

Question

I am trying to replicate this table in LaTeX and I am having some trouble getting the lines to connect.

Here is what I am actually getting:

Here are the packages I am using:

% Packages
\usepackage{times}
\usepackage[english]{babel}
\usepackage{hyperref}
\usepackage{fancyhdr}
\usepackage[dvipsnames]{xcolor}
\usepackage{listings}
\usepackage{parcolumns}
\usepackage{algorithm}
\usepackage{algorithmicx}
\usepackage{algpseudocode}
\usepackage{enumitem}
\usepackage{geometry}
\usepackage{soul}
\usepackage{graphicx}
\usepackage{enumitem}
\usepackage{csquotes}
\usepackage{bookmark}
\usepackage{mdframed}
\usepackage{mathtools}
\usepackage{amsmath}
\usepackage{amsthm}
\usepackage{aliascnt}
\usepackage{mhchem}
\usepackage{chemfig}
\usepackage{array}
% \usepackage{booktabs}
\usepackage{multicol}
\usepackage[toc]{appendix}
\usepackage[
  backend=biber,%
  style=chem-acs%
]{biblatex}

And here is how I have the table typeset in my report:

%! TEX root = ../main.tex

\begin{table}[h!]
  \centering
  \begin{tabular}{|l|l|c|l|l|c|l|l|c|l|l|}
    \hline\\
    $Q_r$ of $R_1$ & $R_1$ & Plus & $Q_r$ of $R_2$ & $R_2$ & Yields & $Q_r$ of $P_1$ & $P_1$ & Plus & $Q_r$ of $P_2$ & $P_2$\\
    \hline\\
    & & & & & & & & & &\\
    \hline\\
    & & & & & & & & & &\\
    \hline\\
    & & & & & & & & & &\\
    \hline\\
    & & & & & & & & & &\\
    \hline\\
    & & & & & & & & & &\\
    \hline\\
    & & & & & & & & & &\\
    \hline\\
    & & & & & & & & & &\\
    \hline\\
    & & & & & & & & & &\\
    \hline\\
    & & & & & & & & & &\\
    \hline\\
    & & & & & & & & & &\\
    \hline
  \end{tabular}
\end{table}

I am aware that the Booktabs package doesn't work well with vertical lines and the general consensus is to just not use them -- but I am trying to replicate this table exactly how it was given to me in the prompt. Why am I unable to get all of the column's vertical lines to match up properly? It clearly works for the first column but goes back to its disconnection in the rest.

Answer 1

Have a look:

\begin{table}[h!]
  \centering
  \begin{tabular}{|l|l|c|l|l|c|l|l|c|l|l|}
    \hline
    $Q_r$ of $R_1$ & $R_1$ & Plus & $Q_r$ of $R_2$ & $R_2$ & Yields & $Q_r$ of $P_1$ & $P_1$ & Plus & $Q_r$ of $P_2$ & $P_2$\\    \hline
    & & & & & & & & & &\\   \hline
    & & & & & & & & & &\\   \hline
    & & & & & & & & & &\\   \hline
    & & & & & & & & & &\\   \hline
    & & & & & & & & & &\\   \hline
    & & & & & & & & & &\\   \hline
    & & & & & & & & & &\\   \hline
    & & & & & & & & & &\\   \hline
    & & & & & & & & & &\\   \hline
    & & & & & & & & & &\\   \hline
  \end{tabular}
\end{table}