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Branching (polymer chemistry)

In polymer chemistry, branching occurs by the replacement of a substituent, e.g., a hydrogen atom, on a monomer subunit, by another covalently bonded chain of that polymer; or, in the case of a graft copolymer, by a chain of another type. In crosslinking rubber by vulcanization,

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Question:Identify the branch of chemistry which would be most closely connected with the following: A. analytical chemistry B. biochemistry C. inorganic chemistry D. nuclear chemistry E. organic chemistry F. physical chemistry 1. air pollution 2. medical research 3. properties of tin 4. radioisotopes 5. refigeration 6. synthesis of rubber I got, 1: A, 2: B, 3: C, 4:D, 5:F, and 6:E. I'm not sure if they're right though. Thanks for your help!

Answers:Well, they all involve one another but: 1.a 2.b 3.c 4.d 5.f 6.e So I would agree, but physical chemistry is also arguable air pollution as well due to reactive rates of ozone depletion.

Question:Alright guys,they say that there are 5 or 5 main branches of Chemistry: Physical,Analytical,Biochemistry,Organic and Inorganic!! But I have know some more main branches (at least to me): Materials Chemistry, Theoretical Chemistry and Macromolecular (Polymer) Chemistry,Nuclear Chemistry and Metallurgy!!! My question is when we ask what are branches of Chemistry,why do we get only the 5 above??..If you say they are main,then how can the branches I mentioned above cannot be main?? I understand that there can be really very un important and meaningless branches like given on this site: http://chemistry.about.com/od/branchesof Also,can anyone tell me all the branches of Chemistry??..Why are only some said to be main??And how many years does it take to become a Chemist..(over all)??

Answers:You'll never get a perfect answer to this question but I'll give it a try: If you HAD to choose 5 branches to be "main" ... the first five you mentioned are probably the best. This is because out of every way you could possibly categorize the branches, these branches overlap with each other the LEAST, yet they are all relatively similar in size. Theoretical chemistry doesn't fall in that list because it's a different type of categorization. The first group is categorizing based on information content, while the distinction between theoretical and experimental chemistry deals with the techniques used. There's theoretical physical chemistry, theoretical analytical chemistry, theoretical biochemistry, and so on. And there's experimental physical, experimental biochemistry, etc.. Also, distinguishing btwn materials and nuclear chemistry is distinguishing based on what you're doing the chemistry ON, while the distinction between physical and analytical is more fundamental. Because of this, biochemistry should be taken out of your list of 5 main (there should only really be 4 main .... biochemistry is just chemistry of molecules that occur in living organisms, it could be physical or analytical too). Usually you can call yourself a chemist after 4 years of undergraduate education. Some people can finish their degree even faster.

Question:the instruction is make a conceptual map of chemistry (no need) as a science. Show the relationships of the different major branches. connect the sub-branches appropriately. SO here is what i need you to do im sorry but our book is very hard to understand. just group the sub branches under the main branches in case it belongs to 2 major branches write it in both for example Oganic medical pathological Biochemistry medical clinical The 5 branches are Analytical, Physiscal, Organic, Inorganic, Biochemistry the subbranches are Electrochemistry Engineering Chemistry Photochemistry Medical Chemistry pathological chemistry clinical chemistry pharmaceutical chemistry Fermentation Astrochemistry POlymer chemistry Geochemistry Enviromental chemistry by this your best answer will get 5 points by this you had helped a third year high school student i need it within 8 hours

Answers:This question saddens me. it is an attempt to put things into boxes that don't really fit in boxes. Photochemistry, for example, is based on spectroscopy (physical) but is used to study the reactions of both organic and inorganic systems, and photosynthesis which is a special case of photochemistry links directly to biochemistry. I actually feel very strongly that the question you have been given is anti-educational. I accept e-mail, and will be happy to explain this to your teachers, and to disclose to them the qualifications I have that makes me entitled to say this. I don't think this is what you wanted to hear, but it's how it is.

Question:The sixth branches of chemistry are organic, inorganic, physical, analytical, theoretical, biochemistry what branch would a chemist be working with if they were doing the following things 1.Investigating energy relationships for various reactions 2. comparing properties of alcohols with those of sugars 3. studying reaactions that occur during the digestion of food.

Answers:1. Physical 2. Organic 3. Biochemistry