The Splash Screen:

Where it all happens:

There is an index page which is specifically designed for those involved with the British AS/A2 "A-Level" chemistry exam system:

Chemical species (atoms, ions molecules, generics...) can be found in several ways.
By picture & synonym... there are 6351 synonyms in version 4.0 of the software:

Synonym list:

Or searches can be by more involved selections, for example by contained element:

Searches can be made by text string:

Every species has a data page:

Which lists the reactions of that species, here some of the 13 reactions which give acetaldehyde are shown:

From this, a specific reaction can be selected:

Or, all reactions can be shown:


Reaction mechanisms can be found:

There is a full & clickable periodic table:

Which gives isotope data:

There are some reaction chemistry "drills" which test your knowledge:



And there are some reaction chemistry "gadgets" which predict the out come of chemical reactions.
Redox Chemistry:

Thermochemistry (the Gibbs equations):

Aromatic Substitution:

Download the software, here.
© meta-synthesis 2005