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crazybrain68

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Everything posted by crazybrain68

  1. Whoops. You are right it is secondary. That is the answer because the more substituted the carbon is, the better able it is to distribute the charge, if i remember correctly.
  2. It would be the tertiary carbocation, wouldnt it?
  3. High school or college level?
  4. I would think as long as you don't actually drink the methanol you should probably be fine. If you do drink it, it will blind you if it doesnt kill you.
  5. Why do you think it is nickel? Nothing in your original post mentioned anything about nickel
  6. Is this just a general chemistry class? If it is in my experience you just need to be able to work a calculator. The equations you get in a general chemistry class are pretty easy, as long as you understand what they are being used for.
  7. You shouldn't be so anxious to wish a part of your life away, there is much more to high school than learning what is taught in class. High school teaches you how to deal with people, which is a vital skill in all aspects of life, including the sciences. I also think you are underestimating the value of the basics of science, sure a lot of it can be boring, but it is key to understand the basics if you are going to really understand the cool, advanced concepts. You don't want to get to college and do poorly because you lack the basics because you rushed through high school. However it is excellent that you show this much enthusiasm and desire to learn science, that is amazing to see in a high school freshman. My high school also had what was called Science Olympiad, I do not know if your school has this, but it would be a good way to learn more advanced topics and compete against other schools. Good Luck
  8. Not a problem. What did you google? I am interested because it looks similar to a type of molecule I have seen before.
  9. Chemical reactions. If you are really interested in learning all of this stuff and cannot wait for a class, I suggest investing in a general chemistry textbook. There are excellent deals on amazon.com.
  10. The lines indicate bonds. One line is a single bond, two is a double bond, etc. The "hexagon with lines in it" is benzene, which is a pretty cool molecule. By the way, where did you find the molecule in your original post?
  11. A lot of this is opinion based, a chemist will say chemistry is the most important, a physicist will say physics and a biologist will say biology. What it comes down to is what area you like the MOST out of all science.
  12. The wedge bonds are the ones that indicate that atom is "coming at you" and are very dark lines that look like elongated triangles. In this molecule they are located at the center. The dashed lines indicate that the atom "is going away from you", they are also located at the center of this molecule.
  13. You could do that, you would just have a multiple major (ie a double major in biology and chemistry),which can be a difficult path to take. However I am sure that with the more science classes you take you are going to find that one area interests you more than the others. If you are worried about limiting yourself to much, just remember that many teams of scientists are interdisciplinary. For example my advisor is a molecular biologist but regularly works with chemists and physicists.
  14. The double lines indicate a double bond between atoms. The hexagons with the alternating (conjugated) double bonds are called benzenes. The O and the H are oxygen and hydrogens, I guess I should have said that were the lines come together that arent labeled are carbon atoms. The wedge shaped lines indicate the stereochemistry. The wedged lines indicate that the atom is "coming at you" while dashed lines indicate that the atom is going away. I hope this helps you out.
  15. You should work in whatever area interests you the most, not necessarily what area will help the most people. In pretty much all science your research will aid people, either directly or indirectly. Since you are still in high school I would take a variety of science classes and use those to judge what interests you the most.
  16. Yes inorganic does have structures similar to this. And dont worry about sounding illiterate, everyone starts somewhere. A quick tip to help you out with understanding the structure, all the lines represent bonds between atoms, where the lines come together represents a carbon atom.
  17. What you have there is the structure to an organic molecule. If you are really interested in organic chemistry I would suggest picking up a textbook on it, it really is an interesting area of chemistry. In the mean time this is a site my organic professor gave my class: http://www.organic-chemistry.org Good Luck:-)
  18. Mitochondria do replicate during mitosis, however I do not know any specifics of the actual process, if you want to know more on the specifics of the process I suggest looking through a cell biology text or asking a professor/teacher. The main advantage I remember offhand for adult stem cells is that since when used in treatment they are often taken from the patient, they dont have a problem with tissue rejection. Also most stem cell treatments currently in use utilize adult stem cells if I am not mistaken. The last I heard there was at least one embryonic stem cell treatment in clinical trials. I will try and see if I can find the article where I read that for you. Merged post follows: Consecutive posts mergedJust a heads up for you cameron, but there is a pretty decent article in the May issue of Scientific American on tissue engineering and the roles of various stem cells play in the engineering of tissues.
  19. Stem cells arise naturally in the development of humans (and many other animals), they are extracted from the inner cell mass of a blastocyst. As for your second question it sounds like you might be describing therapeutic cloning? Yes DNA (from a nucleus) does contain all the information necessary to make a cell, the mitochondria only contains mitochondrial DNA and only codes for more mitochondria (I think). As for if ES cells are the "best", from my understanding that is not an easy question to answer because both ES cells and adult stem cells have their own advantages. You are correct in saying that ES cells have the highest capacity for differentiation.
  20. A major problem they have had was that of the genes used, I believe at least one was an oncogene if I remember correctly, so many of the cells turned cancerous. Recently though they have been able to convert adult cells to an embryonic stem cell like state without using these genes. If I remember correctly one method used plasmids (not sure though), and I recently heard of another method where they used certain proteins, though I haven't heard much about that, just saw one story and they were not clear about what the scientists actually did.
  21. Yes. It should reduce it to methanol.
  22. I am currently culturing mouse fibroblast cells for an undergraduate research project, and I was wondering where the fibroblast cells are located in the mouse? I know they are cells found in connective tissue and form an ECM, but are they found in a specific type of connective tissue?
  23. From what it sounds like to me, you are essentially describing evolution, though when talking about evolution, I believe you avoid using words like "better".
  24. I am not sure what you mean by "engineer itself", could you elaborate?
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