Heyo, I was wondering whether one would consider chirality a physical or chemical property. In my opinion it should be both, because it will affect the way in which plane polarized light is interacted with (physical) but also affect chemical interactions such as receptor binding. On the other han...
Why is it that the potential energy of a system increases when its bonds are broken? (I.e. when a solid turns into a liquid.) I thought the potential energy of the system was mostly contained in these bonds? If these bonds are broken, then why does the system’s potential energy increase?
In my book it is given that earlier cylinder were filled with 2% oxygen and 98% helium. Nowadays it is filled with 11.7% helium, 56.2% nitrogen and 32.1% oxygen.
There are few questions which come up in my mind
Earlier 2% oxygen is changed to 32%. So was 2% oxygen enough for huaman?
98% helium...
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See Who is Upvoting/ Downvoting My Question/Answer
I've got a particular answer that got downvoted a couple of times, for reasons I don't understand. I'm not particularly concerned about the odd point of rep (though for us low-rung ladder people, it all counts!), bu...
I already pointed it out in the comments, but I believe it is time to give it some more thought and explanation. Let's deal with some conceptual issues first.
Hybridisation is a model, that can be used to describe a bonding situation. It is never cause for a certain geometric arrangement, it is ...
I think if you check their profile, you might reach something.
Maybe someone's taking a revenge on them for being in this comment.
This feels very rewarding for me as a regular contributor to this site. I think that a big applause for the "core" contributors is well deserved, especially Ron, Martin and Klaus (and many others of course!) — Joriyesterday
i am just gonna ask , you can just ignore it if you dunno
an triple state of water really have some unique spectroscopic signature ? isnt the point just a dynamic equilibrium between three states. There is no 1 particular state at the point is there ?
That's right, 3 states in equilibrium. I saw that q yesterday, was that yours? I thought it was an interesting question. I suspect that (for instance) the ir spectrum of water changes as a function of temp, pressure, etc. So I might guess that the ir at the triple point would be slightly different than the ir at some other T,P
Boron tribromide is a standard reagent for cleaving aryl methyl ethers to the corresponding phenol. It is a general method and can be used in aromatic methyl ethers with sensitive substituents where acid or base cannot be tolerated.
The above Wiki link also shows the following mechanism
1) comp...
@Martin I hadn't realized that this chat room was also used for non-chemistry chatting - what a novel idea! I have been wanting to mention something about Japan to you. One of my favorite times in Japan was when I traveled down to Awaji island to see the "uzushio". It is the second or third largest in the world, IIRC.
Why is it that the potential energy of a system increases when its bonds are broken? (I.e. when a solid turns into a liquid.) I thought the potential energy of the system was mostly contained in these bonds? If these bonds are broken, then why does the system’s potential energy increase?
In my book it is given that earlier cylinder were filled with 2% oxygen and 98% helium. Nowadays it is filled with 11.7% helium, 56.2% nitrogen and 32.1% oxygen.
There are few questions which come up in my mind
Earlier 2% oxygen is changed to 32%. So was 2% oxygen enough for huaman?
98% helium...
Possible Duplicate:
See Who is Upvoting/ Downvoting My Question/Answer
I've got a particular answer that got downvoted a couple of times, for reasons I don't understand. I'm not particularly concerned about the odd point of rep (though for us low-rung ladder people, it all counts!), bu...
Boron tribromide is a standard reagent for cleaving aryl methyl ethers to the corresponding phenol. It is a general method and can be used in aromatic methyl ethers with sensitive substituents where acid or base cannot be tolerated.
The above Wiki link also shows the following mechanism
1) comp...
The Periodic Table
The Periodic Table