<p>How do you throw a party in outer space?
-You plan-et.</p>
<p>If a reaction network has n reactions and m participating molecular species then the stoichiometry matrix will have corresponding n columns and m rows.</p>
<p>That jack in the box was given to the asian girl in the lower picture. She really liked that joke, and she eventually got a full ride to UC-Berkeley. She studied chemistry.</p>