Short description of EBAS reaction calculator 1.0.1.63: EBAS is a program for balancing chemical equations and stoichiometry calculations. Built in reagent database and concentration and ideal gas calculators simplify solving of all kinds of stoichiometry questions, both textbook and real life ones. To solve most questions it is enough to enter known information - program immediately balances equation, finds out limiting reagents and calculates stoichiometric amounts of all compunds involved.