Chemistry | Forum profile

What is a pi bond? Is it present in an oxygen atom ? What is a pi electron? How does it relate to a pi bond? edit: It just occured to me that you might be referring to molecular oxygen. If that is the case, you should know that oxygen is paramagnetic... that is, it has two unpaired electrons. Try to resolve that bit of information with the Lewis structure!

You mean all atoms - 1 of each element - in ONE box? -- chemical calculators - buffer calculator , concentration calculator www.titrations.info - all about titration methods

One free electron pair on tin, single bonds to the chlorines which have full octets. (The octet rule doesn't apply to tin.)

stomach has lower ph than the intestine(acidic). intestine is basic, right?

Originally Posted by berkeman The first paint manufacturer's website that I checked has an online paint color tool for homeowners -- Sherwin-Williams: http://www.sherwin-williams.com/do_i...lors/index.jsp . I have checked the web it is not really what I want but all the same thanks.

Perhaps a more tractable way of posing the question is to ask: what is the lowest energy way of combining one atom of each element. The answer is not likely to be easy to find, but at least it will have a single defined answer as opposed to worrying about starting conditions.

Originally Posted by Mapes My point here is that a phase change reaction such as is spontaneous at less than 100°C only. So increasing the temperature from 98°C to 104°C, for example, doesn't speed up the reaction, it prevents it! You seem to be confusing equilibrium thermodynamics with kinetics. It's entirely possible (and relatively common) to speed up a reaction while at the same time reducing the amount of products...

Borek : Thanks, I will review them....BTW,are you (among) the principal(s) @ www.chembuddy.com/

The first paint manufacturer's website that I checked has an online paint color tool for homeowners -- Sherwin-Williams: http://www.sherwin-williams.com/do_i...lors/index.jsp .

I think the only impossible part about this is getting all the atoms together in the box before some of them start reacting. How about for the sake of observation, you use 1 mole of each element, instead of 1 atom? This is an interesting question, so I'm a little hesitant to answer since I have a feeling it might be more complicated than I'm thinking. You can't really ignore the starting positions, since that ultimately will...