hypervalent_iodine

MO theory is really the only way I can explain it. If you aren't familiar with it, perhaps get a hold of a chemistry text book and read up. If you go through the rest of the link I gave may also help. I can have a go at simplifying it when I get home, but you would probably be much better off just reading around yourself.

It comes from application of MO theory. There is a diagram that shows the way in which molecular orbitals are populated for dicarbon in this link: http://www.chem1.com/acad/webtext/chembond/cb08.html Essential, because the bonding pi orbitals are lower in energy than the sigma orbitals, they end up being populated first. As there are only 4 valence electrons available to carbon, the end result is that the bonding pi orbitals are filled and the sigma ones are empty, meaning that only the pi molecular orbitals contribute to the bonding between the two carbon atoms.

In addition to swansont's post, I think that the broader picture of physics and the questions it answers about the world have a certain appeal to lay-people that something like chemistry doesn't seem to. It is much more accessible and interesting for the same big-picture reasons and in being so, attracts a lot more people to the cause who think they can use limited specific knowledge and conventional logic to answer the same questions. The avenues of research other disciplines are involved in are perhaps not as obviously relatable to the real world and too complicated in their appearance to achieve the same status in public discourse. One exception to that might be evolution.

Is this a homework question?

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If you can assume that they are ideal gases, then the number of litres one mole of gas occupies will be the same for all of the gases and you can therefore treat the volume in a similar fashion to moles (in that you use stoicheometric ratios to figure out how much of something you get given x amount of something else). Edit: this is what was being alluded to with Avogadro's law (note: not the constant of the same name).

Could you be a little clearer in what your question actually is? I assume you need to work out delta H at some point given the data that you have, so could you please indicate where you are having trouble? We are not in the business of doing a person's homework here, so you will need to show some effort.

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Denaturation applies to macromolecules in the context you are referring to; those processes don't apply here, since H2O2 is a small molecule.

I think that it's you who needs the citations. But here, go nuts: http://en.m.wikipedia.org/wiki/IUPAC_nomenclature_of_organic_chemistry

One thread per topic, please. Rather than uploading whole PDF's, try and summarise your point in text or if it is an image, upload it to the post as an image. Thread closed.

Propyle and methol are not part of IUPAC naming conventions. When you have an alcohol substituents coming off your parent chain like that, it is written as n-hydroxyalkyl (5-hydroxymethyl in this case). Edit: if the chain were bigger, you would also specify the position of the hydroxy group and put the name in brackets. For example, 5-(2-hydroxyethyl)-1-octanol.

Yes, by the very definition of the term atheist.

This is nonsensical. The lack of a belief in a God or Gods is not contingent on the existence of people who do.

Since I think that the phoA gene derives from E Coli (or so Google is hinting), I imagine by looking for the Shine Dalgarno sequence in the 5' UTR.

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Animals for food is not the issue being discussed, so your bigger picture is rather irrelevant.

Potassium is a first row metal, all of which have a +1 oxidation state in ionic form. The reason for this is that they have 1 valence electron and it is much easier to lose that electron to obtain a full outer valence than it is to gain 7. Electrons being negatively charged means that the loss of one electron gives an atom such as potassium a +1 charge / oxidation state. Similarly, the group 2 metals (Ca, Mg, etc.) are all of a +2 oxidation state when ionised.

You should look up functional group regions for IR spectra.

I may be totally off on this, but would something like BLAST not work? If you have a large amount of data, you will probably want to operate this through a HPC system.