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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,

From Yahoo Answers

Question:Okay I have a worksheet and the directions say: For each type of investigation, select the most appropriate branch of chemistry from the following choices: organic chemistry, analytical chemistry, biochemistry, theoretical chemistry. MORE THAN ONE BRANCH MAY BE APPROPRIATE. Ive already done about 25 of these but Im stuck on these. I will give you the statements Im given that I need to classify and then I will give what my book defines for each branch of chemistry so you can help me off of my books exact definition. Here are the statements: a. A forensic scientist uses chemistry to find information at the scene of a crime. b. A scientist uses a computer model to see how an enzyme will function. c. A professor explores the reactions that take place in a human liver. d. An oil company scientist tries to design a better gasoline. e. An anthropologist tries to find out the nature of a substance in a mummys wrap. f. A pharmaceutical company examines the protein on the coating+ of a virus. Heres what the book defines for each branch. Organic chemistry- the study of most carbon-containing compounds. Analytical chemistry- the identification of the components and composition of materials. Bichemistry- the study of substances and processes occuring in living things. Theoretical chemistry- the use of mathematics and computers to understand the principles behind observed chemical behavior and to design and predict the properties ofnew compounds. Also, it would be really helpful if you can explain why these are what they are. Thanks again!

Answers:agreed with halifax

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.


Answers:1.Horticulture(Pomology,Olericulture,Floriculture, Silviculture, Arboriculture , Viticulture etc) 2. Agronomy 3. Plant pathology 4. Agricultural entomology 5. Agricultural meteorology 6. Agricultural Engineering 7. Soil science (Edapology,Pedology) 8. Agricultural chemistry 9. Veterinery sciences and AH 10. Pisciculture (Fisheries) 11. Sericulture The list is very long and I cant include many.

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.

From Youtube

Tree Branching :VLoG #98: How it works is you get a piece of paper. You write down 10 career choices; all things you would LOVE to do (they can be hobbies also). Make sure you number them as well. Then you start at #1 (ie video game designer) and then go down the list to see how many numbers #1 will let you get involved with. Then you go to #2 (ie sound designer) and compare it to all the other numbers (1,3-10). Do this for all 10 numbers and then when you are finished, see which number lets you get involved with the other numbers the most. #2 might have the greatest potential to let you get involved with 5 other numbers. There may even be cases where a certain number on your list lets you cover EVERY other number on your list. If/When that happens- I strongly suggest plotting that one in on your GPS. Music: Love in this club instrumental by Usher Make way instrumental by Birdman