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I am looking into PhD programs in Northern California. There are dozens of schools that offer graduate programs in organic chemistry. Can anyone tell me what north cali universities have good reputations? http://programs.gradschools.com/california/chemistry.html

Does anyone know what the names of these ions would be??? 1. SeO4 with a 2- charge 2. HSe with a 1- charge 3. HSeO3 with a 1- charge

Does this metaphor explain it??? When two atoms come together it is like two magnets coming together. Holding the two magnets just a little bit a part takes energy, because they are really attracted to one another. Then when they come together they release energy, which is in the form of sound (a snap). The reason they release this energy is because now, they don't need the extra energy they used to stay apart.

Um, I am still confused. However, thank you for the reply : ) So, they release heat, because now they move around together instead of independantly? Can you put this in terms of a metaphor that I can relate to?

On an atomic level, what happens to atoms when they form bonds to cause them to release energy?

Hi, I graduated with a BS in chemistry from the University of Pittsburgh last spring. Now, I am working on my masters in education. I am not sure if I want to teach anymore, and the uncertainty of finding a job in education is scaring me. So, I was looking at some other possible career routes that I could take, and I came across pharmaceutical sales. I was wondering if any of you are pharmaceutical sales representatives, and if you wouldn’t mind filling me in what I need to do to prepare for interviews for this position. (The company that I am looking to apply to is Glaxo Smith Kline.) Thanks!

Thanks! I am a student teacher and I wanted to complete a demonstration using a heterogenous catalyst. I wasn't sure if this would be safe or not.

What would happen if you reacted H2O2 (not very concentrated) with nickel or palladium? Would there be an explosion?

Does anyone know how to make 0.05 M acidified copper (II) nitrate solution from concentrated HCl and Copper (II) Nitrate solution?

thanks : )

Why is water a good material to use in a calorimeter?

I was just wondering because a professor of mine told me that one of his lab students had to get her contacts surgically removed because they became fused to her eyes. To me this really didn't sound plausible, especially since she didn't splash any chemicals in her eyes.

Is there any truth to the statement that some fumes from organic solvents can react with contact lenses causing them to fuse to the eyes? If so, then what are these solvents?

That is a good idea; however, I forgot to mention that, at most, I have 10 minutes to give this demo. I need something really simple.

I am taking an education class in teaching lab science, and I am supposed to give a chemistry demonstration as a requirement for the course. I want to give a demo on something regarding mixtures and pure substances, separation of mixtures, or energy and energy changes. However, I am limited as to what chemicals I can use (I have no acess to lab chemicals) so the simpler the better. Can anyone give me some suggestions???

So, I want to become a high school chemistry teacher. In order to get my licensure for the state of PA, I have to take the Praxis II Chemistry Content test. Has anyone taken it?? I just want to know how difficult it is. I have taken the practice test they offer on the ETS web site, but I feel that it was pointless due to the example test including a disclaimer which stated, “This test is not an indicator of difficulty or scope of the actual test.” Therefore, I really have no idea what to expect. Can anyone help me with this????

So, I was assigned this homework problem about Hamiltonians, and I have no idea where I should begin to even attempt to solve it... Problem: A simple one-dimensional problem in physics is dropping an object of mass m from a height Xo under the influence of gravity, for which the Force=-mg, and the well-known trajectory is X=Xo-(1/2)gt^2. Find the Hamiltonian for this problem by explicitly evaluating the potential energy V, taking V=0 at X=0 (ground level), and show that dH/dt=0, or that H=E (total energy), a constant. Potential Energy V= mass*gravity*height or in this case V= mgXo

nevermind...I figured out my question.

It involves: quantum theory, atomic and molecular structure, symmetry, spectroscopy, diffraction methods, thermodynamics, kinetic theory, equilibria, introductory statistical mechanics, and reaction kinetics.

Thank you yourdadonapogos for giving me a correct answer. I just looked up quarks in a text and it verified your answer.

I know that. Think about it, a proton (+) plus an electron (-) would not have any charge.

Does anyone know of a good physical chemistry text book that I could purchase? I want something to supplement a physical chemistry course I will be taking in the fall.

Does anyone know if neutrons are actually made up of a proton and an electron fused together?

By conjugation i mean structures with many pi bonds..... like aromatic rings.

So, if the molecule has an option of vibrational relaxation, then it will do that instead.... simply because it is more favorable? Also, does conjugation have something to do wilth fluorescence?