The Arrows

Reaction arrows appear in many equations and you need to remember the codes necessary to produce them.

=>                                gives you a single arrow                        

< >                                gives you a double arrow                

="above">                        adds a message above the arrow

="above","below">        the comma allows information below the arrow as well

Notice that the words "above" and "below" are now surrounded by quotes.  This prevents the chemical equation tool from formatting the words as chemical equations.