What are chem trails exactly?
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What are ChemTrails?\nThe chemtrails theory is a group of theories regarding what are claimed to be unnatural contrails from aircraft. (Contrails are formed by condensation of water vapor in the aircrafts' exhausts.) Chemtrails are some kind of chemical or biological agents being secretly released. As things stand, this currently falls under the category of conspiracy theory. \n\nAre they real?\nFor the most part, the lines in the sky we see are contrails, but chemtrails are an unfortunate reality. They are thicker than contrails and sometimes remain in the sky for hours after thickening. They appear cloudlike and low in the sky. There have been incidents where airborne aluminum, barium, calcium, magnesium and titanium, and "microscopic fibers" were found as a result of chemtrails. Regardless of denials, this is a fact. Some people say it's part of chemical warfare but in reality, it's a form of clear-cut air pollution and illegal dispersion of wastes. Of course in the future, this type of practice could and may be used as an exotic weapons system for biochemical attack, but the chemtrails we see now are not dispersed for that purpose.\nHow much do they endanger the average person?\nIt depends on what type of toxins and pollutants are released and how close one is to the actual dispersion. Each incident is specific in and of itself. Weather and wind conditions also affect how the toxin are spread and received.
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Try chemdex.\n\nhttp://www.chemdex.org/
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http://trailquest.net/RMbartram.html
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No. Your best bet is chemfinder.com. You can also find a lot of chemical data on wikipedia. I have to make a table of chemicals for all of my labs and I use those two sites.
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Here is a start:\n\nhttp://www.faqs.org/faqs/sci/chem-faq/part4/section-1.html\n\nwww.skillsplusinc.com/ PDF%20File%20Subweb/Classes/Class%20QA.PDF\n\nhttp://www.steris.com/resources/resources_wp.cfm\n\nwww.nature.nps.gov/im/units/ cupn/Reports/QualityAssurancePlan.pdf
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Duh - there is nothing wrong with the question being  posted here, Have you never heard of Rails to Trails. Most states have a site  that tell about their Rails to Trails programs, ares here in Florida is http://www.dep.state.fl.us/gwt/guide/index.htm you can find the information you seek at those sites.
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Vapor trails are a function of flight altitude and weather conditions.  Vapor trails have nothing to do with type of aircraft - does not even have to be a jet. A bit of trivia -during WWII weather forecasters were relied upon to predict altitudes at which vapor trails would occur so our bombers could avoid those altitudes as they approached their targets.  This was essential information since enemy anti aircraft guns could track the flight of high flying aircraft if they flew at vapor trail producing altitudes.
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here you go...\nhttp://www.dcnr.state.pa.us/polycomm/pressrel/railstrails0699.htm
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something about chemistry
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(im taking chem 1411 in college, and this is how our class is setup)\n\n-Basics of Chem\n- Structures of Atoms and Molecules\n- Solutions, Substances, and Mixtures\n-States of Matter\n- Chemical Reaction\n- Nuclear Chemistry\n- Elemental Chemistry\n- Introduction to Quantum Chemistry and Physics
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alchemy is the base of chemistry to a point.  alchemy.com will get you started, but don't expect to turn lead into gold.  that takes nuclear chem...
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http://www.olysun.com/Chem_121/Soln.html\n\n\ncc
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Do you mean a reaction?  Some can be tracked by analytical methods.  Chemical equation has no meaning in this context.
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International Directory of Chemical Engineering URLs\nhttp://www.ciw.uni-karlsruhe.de/chem-eng.html
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yes some of the trails start at the observatory.there are alot if you look in that area.there are also trails by the greek theater about a half mile south of the observatory.
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Try this one:\n\nhttp://www.dynamicdrive.com/dynamicindex13/trailortext.htm
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At the top of your screen, 'Search:' type in 'chemistry help'...leads you to many sites offering a wide vaiety of help in chem...browse through them till you find the type of help you need...'let your browser do the walking'  :-))\n\nYou can narrow the search with...chemistry help math...I see some sites there which seem very helpful...good luck.