I used to use a program called ACD sketch I see its still around http://www.freechemsketch.com/ its was fun to play with for molecular modeling.FTA I kinda had to chuckle at the accounting reference, I am a chemist and that is how I see chemistry as "electron accounting". In my experience as a tutor students need to be shown how spreadsheets can be used to interpolate data for everything from balancing equations to plotting curves for kinetics, spectroscopy, pH titration ect. and even for keeping notes formally scribbled on paper towels.."shudder as my former profs heads spin"
Just a theory but the space suit probably smells that way because is it was bombard by cosmic rays, as well as all other particles interacting with the suit while EVA.
Sucralose is as close to sugar as scientifically possible. It basically is sugar. The molecule is reversed. It taste like sugar but it is lighter and the body passes it right through with no ill effects. It's actually made from sugar.http://splenda.com/page.jhtml?id=splenda/faqs/nocalorie.inc#q1
Always draw your curves, then plot your reading.