Chemistry Online - Polymer Chemistry Knowledge Base

Polymer Chemistry Knowledge Base

Polymer chemistry? What are the main differences between thermost and thermoplastic polymer materials! any help will be really appreciated! thanks!

need a help in polymer chemistry..? my chem sir wants me to take a seminar abt any topics related to polymer chemistry. so pl suggest me some topics abt polymer chemistry which should be an interesting one. pl help...

what are the practical applications of polymer in chemistry/physics?

what is Polymer Chemistry?

Polymer Chemistry. I hope someone will help me doing my thesis.? What are the behaviours of gel polyvinyl alcohol? and what are the behaviour of cross-linked natural rubber? Does their behaviour is similar or different? If different, why? Help me plz. Your goodness will be appreciated...thanx a lot

Polymer chemistry help? The first order rate constant for the decomposition of diethyl peroxide has been reported to be around 1.0x10^14 * e^(-35,000cal/RT) Predict the temperature range for which diethyl peroxide would be a good initiator. Please explain steps...thanks, all.

polymer chemistry question? perhaps this question is a little "elementary" - but I don't know the answer- the shape of polymers can be linear, branched, combed..., but i always read them as being solvent like substances prior to polymerization. can someone explain how these solvent (liquid) mers change to a "strand" (solid) when lengthened?

Is any job opportunity for M.Sc Polymer Chemistry holder?

define polymer chemistry?

what are polycondensation reactions in polymer chemistry?

HSC Chemistry: Explain why cellulose is a condensation polymer?

Help me with chemistry project topics? Particularly those that have to do with polymer chemistry.

What is the "polymer of the 20th century"? I've been asked to determine the polymer of the 20th century for chemistry. I've come up with a few candidates (but I won't put them here to sway anyone's answer), however I'd like to know what other people (especially from from different backgrounds think. By the way, by "polymer of the 20th century" I mean one that was actually invented during sometime that century, not just discovered (like DNA was).

in chemistry, how is a monomer related to a polymer?

which branch of chemistry will have more demand in future? ORGANIC, INORGANIC, ANALYTICAL, POLYMER, PHYSICAL?

where can i get information on Post Doctoral fellowships? i am a Phd holder in polymer chemistry from india. i would like to do post doctoral reasearch in any of E.U countries. please let me know the details.

Chemistry question about the number of moles of vinyl acetate in a 4.6 gram sample of chewing gum.? Chewing gum is composed mostly of polyvinyl acetate. The monomer user to prepare this addiion polymer in chewing gum is vinyl acetate. If a stick of chewing gum has a mass of 4.9 grams, how many moles of vinyl acetate must have been used to make the stick of gum?

what is the chemical equation for super-absorbent polymer? i need to find this out for my chemistry project and i havent found the answer yet.....does someone know?

Does anybody know what type of polymer that car bumpers are made out of? Help!? I am doing a chemistry project, and I need to find out what kind of polymer is used to make car bumpers. Help!

Please suggest me some very good topics for chemistry project file -class +2.? Except these topics : Electrolysis polymers surface chemistry biomolecules soaps dna rna electrochemicals all types of cells rusting of iron defects in crystals medicines dyes Actually, i want the topics for a file & not for a working project.

Suggest a good topic in Chemistry for a research proposal at the Undergraduate level? No organic mechanisms please Polymer, inorganic, Analytical preferred

I need help understanding this chemistry question? I don't need help solving it, but just understanding the context of what it's trying to ask: Calculate the percent composition by mass of the following compounds that are important starting materials for synthethic polymers: Ex: C3H4O2 So what is this question asking? Is it just finding what percentage an element accounts for in the whole compound? So I would say something like Carbon accounts for 50% of the compound??

Can someone please help me with this biology/chemistry concept? Why are lipids not classified as polymers? How do lipids differ from polymeric macromolecules?

Chemistry - Condensation Polymers? Does any1 know what the intramolecular forces are between condensation polymers? (e.g hydrogen bonds/dipoles?) And how does increases in temperature affect the polymer chains for condensation polymers

Chemistry exam,plz help me to make out my study plan? hello every1 well i hve my chemsistry exam on 4th of jan i ahve 16 chapters to prepare & hve 3 & a half holidays (half as i will hve a day as on 3rd jan i have my english exam so half day left to prepare) ...plz help me to make out a plan for preparin for the followin chapters in particular day following r da chapters:(for more info that wht i m talkin abt c da end) 1 SOLID STATES 2.SOLUTIONS(many numericals) 3.ELECTROCHEMISTRY 4.CHEMICAL KINECTICS 5.SURFACE CHEMISRTY(MOSTLY LEARNING) 6.GENERAL PRINCIPLES IN EXTRACTION OF ELEMENTS FROM THEIR ORES 7.P BLOCK ELEMENTS 8.D & F BLOCK ELEMNTS 9.COORDINATION COMPOUNDS 10.HALOALKANES AND HALOARENES 11.ALCOHOLS,PHENOLS AND ETHERS 12.AMMINES 13.ALDYHYDES,KETONES AND CARBOXYLIC ACIDS 14.BIOMOLECULES 15.POLYMERS 16.CHEMISTRY IN EVERYDAY LIFE(mostly learning) 4 exmple..plz tell me what all chapters 2 do in my 1st,2nd,3rd and 4th holiday resp...keeping in mind that i ahve to keep my last half of the holiday for revisi

Help with chemistry!! 1. What cell structures use polymerization? FEEL FREE TO ANSWER 1, please and thank you? 2. How is initiation achieved in addition reactions of microvili of the plasma membrane? 3. What are the polymers of the microtubles and how are they stabilized? 4. What are the monomers of the microvilis of the plasma membrane filaments 5. What is the monomere of microtubules?

Past papers for biology and chemistry? do u know where i can find gcse past papers for biology and chemistry? i need to study ,.. i've searched many sites, but the past papers have questions related to nothing i learned???? for biology, i need past papers for photosynthesis and respiration. For chemistry i need metals, oxidation, reduction, polymers, and atoms, covalent bonds, etc. past papers that contain just any topics on biology or chemistry won't help because they won't be in my end of year exam. please help

In which lab should I do an internship ? I would like to do an internship in India for 1 year before beginning my Ph.D., do you know a good lab : good chemistry and good atmosphere ? (with air conditionning ?) I am looking for synthetic chemistry : organic, inorganic, polymers, materials (with a preference for subjects related to green chemistry). Thanks for your answers!

I made nylon in chemistry lab just wondering if anybody can give me help? I have to answer the following questions. 1. describe chemistry of reaction 2. describe product characteristics 3. describe the main intermolecular forces acting on the polymer chain. Any help with these questions wil be mush appreciated! Thanks its preparing nylon 6, 10 (poly amide)

explain the chemistry in the action of acrylic & vam polymers to improve stain & scrub resistance in a paint,? this is for a water based paint.

What is best for a career choice? Your love or your interest? I love commercial aviation, and i know that i would love to work in that industry as a pilot for a commercial airline. Ive wanted to do this for like 2 years, and just got accepted to a college where my major will be commercial aviation, and where i will have flying lessons and all that. But, I am also really interested in chemistry. I love chemical formulas, and knowing what the chemical composition of things like candy, and stuff like that are, and i could also see myself working in that field. My main chemistry interests are polymers and flavors. omigawd what should i do.. i already have the aviation thing all planed out for me... but omg chemistry... Maybe i should take chemistry classes in college maybe as a minor while I major in aviation? or a double major? the only problem with that is the aviation program is kind already like a double major. I will have my normal work, then along with my flight school work. Then if would need to add the chemistry minor to that.. What do you think?? No, i want to go to real college.

Chemistry Homework? If you could do/explain one or any amount of these chemistry problems for me that would be great! Please explain how you got the answer in detail and show work. If you have yahoo! messenger instant message me if you know how to do any of these. Thank You! 1. How many grams of sulfur are in 14.2g of SO2? 2. Convert 2.10g of NH4Cl to formula units. 3. Styrene, the raw material for polystyrene foam plastics, has an empirical formula of CH. Its molecular mass is 104g/mol. What is the molecular formula? 4. Determine the empirical formula of a compound with the percent composition of 69.58% Ba, 6.090% C, 24.32% O. 5. A compound consisting of 56.38% phosphorus and 43.62% oxygen has a gram molecular mass of 219.9 g/mol. Determine its molecular formula. 6. Find the mass, in grams, of 6.25 mol of H2SO4. 7. The percentage of polymer used for the nonstick surface of cooking utensils is 24%C and 76% F by mass. What is the empirical formula of this polymer?

help with chemistry homework? i'm stuck on two of the question from my chemistry homework- can anyone please help? 1. plastics make upmof 8% by weight of domestic watse but they take up 20% of the volume of rubbish collected. how do you account for this? 2. burning a plastic such as polythene give out energy. what are the other products of buning this polymer?

Chemistry Scavenger Hunt ? It is a Chemistry Scavenger Hunt 1 A product of an oxidation-reduction 2 Dilutic Acid (Show Percentage) 3 A hydrocarbon with molecular mass >100 4 2-propanol 5 0.30 mole of sodium bicarbonate 6 a polymer of vinyl chloride 7 an acid-base indicator other than cabbage extract 8 an oxide of a transition element 9 Acetylsaliscylic acid 10 Ions 11 SiO2 12 An electrochemical cell 13 An Inert Gas 14 An emulsion 15 Something to lower the freezing point of 50g of water by 0.5C (show calculations) 16 A substance that divides endothermically 17 A Substance with a pH>7 18 A substance with density <1.0g/ml

Where does the chemistry suffix "-mer" come from? As in isoMER, polyMER, monoMER, enantioMER.

highschool chemistry scavenger hunt!? ok, so i have a list of 100 items to fill in a shoebox for my chemistry class. ive gotten most of them, but a couple i find tricky. id be sooo grateful for some help. 1. Something containing an inert gas-name the gas. 2. Ionic substance whose lattice energy is more than its hydration energy 3.A substance that dissolves exothermically 4. Acidic salt (baking soda, NaHCO3?) A material which contains exactly 200 nutritional calories 5. A natural long-chain polymer 6. A list of all thenaturally occuring isotopes of molybdenum. Identify those isotopes that are radioactive. 7. A tangible example of Le Chatelier's Principle 8.Acidic anhydride that makes a refreshing drink 9. A non-aqueous solvent with its chemical formula. 10. An example of a slightly polar non-electrolyte 11. A substance containing a halogen- name the halogen. These must be tangible objects that fit in a shoebox. Any help is welcome. Thank you so much!!!

how can i make 10 grams of a polymer? i need the whole experiment for a chemistry project. thanks

Chemistry Questions Multiple Choice please help? I forgot my chemistry book at school and I need to do these before the weekend... please don't just guess if you don't know the answer. thanks. 1. One of the physical properties that all acids share is A. no color B. color C. sour taste D. bitter taste 2. Weak acids do not ionize to a high degree in water, so they produce few A. electrolytes B. hydrogen ions C. hydroxide ions D. carbonates 3. You should never use taste or touch to identify bases because they can be A. corrosive B. slippery C. sour D. antacids 4. Which of the following is not an acid/base indicator? A. litmus paper B. red cabbage juice C. lemon juice D. blackberry jam 5. Which ion do bases contain? A. OH(-) B. H(3)O(+). C. H(+) D. NH(4)(+) 6. When an acid and base combine to neutralize each other, the resulting products are water and A. a strong acid B. a strong base C. a salt D. a polymer 7. Organic compounds always contain A. carbon B. oxygen C. halogens D. carboxyl groups

Chemistry end of year exam? I have a chemistry test, a big one (end of year exam) in two months time. i don't know what they call it, is it mock exam?? it's my new school, and when i first took my chemistry test, i was told to revise only by textbook(with too simplistic and little info), and as i thought, i got very low grade, so this time i think i shouldn't rely 100% on the textbook, I'm also using bbc.co.uk to help me. Here is what's going to be in the test. 1)atoms,(things like covalent bonds,) 2)metals(alkali metals,.., oxidation, reduction, redox reaction, displacement reactions,) 3)dyes(polymer, starch,, carbohydrate..pleural membrane, glucose, etc) please tell me where i can get a practice mock exam paper online, so i can get really high marks on the test, our school test really twists the questions, so it's hard to get high grades just from studying basic info on the textbook. Thanks

CHEMISTRY HELP! Ionic, Metallic, and Covalent compounds & Polymers? Describe the "sea of electrons" model. Why covalently bonded compounds may have relatively low melting points? What are lattice structures? What are the 2 most common types of bonds that hold monomers together? Describe polymers. How do covalent compounds form (the scientific process)? What's the difference between a covalent, polar covalent, and ionic bond? Please provide some visual aids and illustrations. What does it mean to be a polar bond? How do you know if particular bonds between elements are ionic or covalent? Electronegativity values What types of compounds are made from a metal/non-metal combo? Why do delocalized electrons allow for conductivity and generally high melting points? Please provide some illustrations and thorough explanations. Thanks mucho =). You are amazing.

How many reacting units are in a monomer? Chemistry homework. (-.-') Okay, I had the answers at first but then I realized that a polymer is the one that has 500-20,000 or more reacting units, so I had to start all over again. How many reacting units are in a monomer, a dimer and a trimer? .. Is it one, two, three?

Radical Chemistry Question? This is for my organic chemistry lab in which a cross-linked superabsorbant polymer is being synthesized. If the amount of radical starter is increased, what effect will this have on the ability of the polymer product to absorb water?

pleeeeease!! help!! project in chemistry!? please name scientific breakthroughs with the contribution of chemistry in the fields of medicine agriculture forensic forestry polymer nutrition education sports anything..about tools, processes or products.. pleeease.. can't find in yahoo..there's different result.. please, tell me a site for reference or anything, type the whole article or what, or even just the keywords for the right results... please..any answer? thank you most sincerely!

Chemistry Multip. Choice Questions? I forgot my chemistry book at school and I need to do these before the weekend.. please dont just guess if you dont know the answer. thanks. 1. A polymer is made of a series of A. atoms B. monomers C. fuels D. synthetic molecules 2. An example of a natural polymer is A. wool B. plaster C. crude oil D. copper 3. An example of a synthetic polymer is A. natural rubber B. protein C. rayon D. cotton 4. An example of a polymer product is A. lead tubing B. crude oil C. water D. plastic 5. The structural formula of a substance whos name ends with -yne would have at least one quadruple bond. A. True B. False

chemistry on manufactured substances in industry.? My chemistry's teacher had just set us an assignment for us to complete after a week of holiday. the assignment is:- 1. what is sulphuric acid? 2. what is the uses of sulphuric acid? 3. how to manufacture sulphuric acid? 4. what are the environmental pollution caused by the sulphuric acid? 5. what is ammonia? 6. what is the uses of ammonia? 7. how to manufacture ammonia? 8. what are the environmental pollution caused by ammonia? 9. what are the properties of ammonia? 10. what are alloys? 11. what are the properties of alloys? 12. what are the uses of alloys? 13. what are polymers? 14. what are synthetic polymers? 15. what are the uses of synthetic and natural polymers? i know that this is much. but you can help me by answering a few of these questions. thank you.

chemistry experiment? I'm taking honors chemistry next year and our summer assignment is to present a chemistry project. Sadly, the ones I've tried haven't really worked so I'm looking for a really exciting [but easy, guaranteed to work] chemistry experiment. Any ideas? These are the ones I've already tried: -freezing bubbles with dry ice -making a dry ice crystal ball -making bouncing polymer balls. Any help is GREATLY appreciated. Thanks!

Does anyone know anything about metallic balloons? I'm doing a chemistry leaflet and presentation. I need to knwo the names of the polymers involved, the structure of the monomers and polymers and an outline of the synthesis of the polymer. Help! Can anyone please help!

wht is the deleted portion in chemistry for cbse class 10?is polymers n soaps n detergents n hydrogen there? i hrd they were deleted...is it tru?

is insulin a polymer? i have a chemistry project and i need to know if insulin is a monomer or a polymer and it's chemical equation. If it's a polymer, what is it made up of?

online chemistry guide? hii i am an undergraduate student in chemistry.i'm interested to know more about the topics that are in my syllabus which aren't there in the text books.any idea where i can get free online study materials? genuine sites please. some of the topics that i 'm interested are thermodynamics,kinetics,kinetic theory,real gases,periodic properties,atomic structure,radioactivity,acid base equilibrium,redox chemistry,stereochemistry,basics of bonding with emphasis on homo lumo,elimimation reactions,substitution reactions,polymers,alkanes,alkenes,alkynes,alkadienes,rearrangements,methods for detecting reaction mechanism,reaction inremediates,reaction mechanisms,etc. any genuine help is appreciated. thank you so much.

How is Starch formed in the body? This is for Chemistry, Gr.12 University course. We're on the Polymer section.

I have Chemistry exam (class XII) after 15 days. Please help? Solid State Polymers Coordination Copound Solutions Biomolecules Whole of Organic .........these and may be one or two more chapters are coming in the exam and I don't know a single word in chemistry because I was absent from school due to many reasons.......... Kindly tell me how to prepare. Which chapters to deal first? Internet sites ?Books?............ Thank you very much.

i really need help with my chemistry homework? I need to find all of these things its a scavenger hunt! 1. A product of an oxidation-reduction reaction. 2. Dilute acetic acid. 3. A hydrocarbon with molecular mass >100. 4. 2-Propanol. 5. 0.30 mole of sodium bicarbonate. 6. A polymer of vinyl chloride. 7. An acid-base indicator other than cabbage extract. 8. An oxide of a transition element. 9. An organic aromatic compound. 10. Acetylsalicylic acid. 11. Ions. 12. SiO2 13. An electrochemical cell. 14. An inert gas. 15. An emulsion. 16. Something to lower the freezing point of water. 17. A substance that dissolves endothermically. 18. A substance with pH > 7. 19. A substance with density < 1.0 g/ml. 20. The salt produced from magnesium hydroxide and sulfuric acid. 21. 0.50 M NaCl. 22. Polar molecules. 23. A metalloid. 24. The mass of NaCl that can be produced form 10 g of sodium hydrogen carbonate reacting with excess hydrochloric acid. 25. An equilibrium system containing hydrogen carbonate, bicarbonate ions, and carbonate ions. 26. A single unit crystal of alum. 27. Nonpolar molecules. 28. An amount of water whose temperature would change by 15 degrees Celsius, when it absorbed 630 calories of heat energy. 29. A homogenous substance. 30. A weak organic acid. 31. Something containing titanium (IV) oxide. 32. An alkaline earth hydroxide. 33. A compound of an alkaline metal and a halogen. 34. A mixture that could be separated by paper chromatography. 35. A volatile liquid. 36. A product containing an element with 29 protons. 37. Something containing a transition element from period 6. 38. A nonmetal. 39. 6.02 x 1023 of anything. 40. An electrolyte. 41. L-carvone or D-carvone. 42. The solid product of the reaction between solutions of calcium chloride and sodium carbonate. 43. A cardboard cube constructed to have the same volume as 0.10 mole of hydrogen gas at STP. 44. An original limerick about chemistry (proper limerick form). 45. A picture of a famous chemist (copy acceptable, if clear). 46. A Bronsted-Lowry base. 47. An aqueous solution of a nonelectrolyte. 48. A molecule with bonding that follows the octet rule. 49. A hydrated crystal. 50. Methyl salicylate.

help me out !!!!!!!! any chemistry bany here? chemistry projects i am making a project on polymers cant find enough information can u suggest me some sites name

help me with any of these i need to find these things for chemistry,they have to be householf or easy to find? 1. A product of an oxidation-reduction reaction 2. Dilute acetic acid . 3. A hydrocarbon with a molecular mass > 100 g 4. 0.30 moles of sodium bicarbonate 5. A polymer of vinyl chloride 6. An acid-base indicator 7. An oxide of a transition metal 8. Acetylsalicylic acid 9. Ions 10. SiO2 11. An electrochemical cell 12. An inert gas 13. An emulsion 14. Something to lower the freezing point of water 15. A substance that dissolves endothermically. 16. A substance that reactions exothermically. 17. A substance with a pH > 7 42. 6.02 x 10 23 of anything 18. A substance with a pH = 7. 19. A substance with a pH < 7. 20. A substance with a density > 1.0 g/ml 21. A substance with a density = 1.0 g/ml 22. A substance with a density < 1.0 g/ml 23. The salt produced when sodium hydroxide reactions with hydrochloric acid. 24. Polar Molecules 25. A metalloid 26. The mass of NaCl that can be produced from 10 g of Sodium hydrogen carbonate reacting with an excess of hydrochloric acid. 27. A single unit crystal of alum. 28. Nonpolar molecules 29. An amount of water whose temperature would change by 15 °C when it absorbed 630 calories of heat energy (see specific heat) 30. A homogeneous substance 31. A weak organic acid 32. A compound of an alkali metal and a halogen 33. A mixture that could be separated by paper chromatography 34. A mixture that could be separated by filtration and evaporation 35. A brittle substance 36. A malleable substance 37. A ductile substance 38. A non-metal 39. A product containing an element with 29 protons 40. Something containing a transition metal from period 6. 41. A metal 43. An electrolyte 44. A cardboard cube constructed to have the same volume as 0.10 moles of hydrogen gas at STP (Standard Temperature and Pressure) 45. An original limerick about chemistry (proper limerick form required!) 46. An aqueous solution of a nonelectrolyte 47. A molecule with bonding that follows the octet rule 48. A hydrated crystal 49. A sample of diatomic molecules 50. 22.4 L of a gaseous mixture

Chemistry Questions T/F? I forgot my chemistry book at school and I need to do these before the weekend... please don't just guess if you don't know the answer. thanks. TRUE or FALSE 1. A polyatomic ion is a group of covalently bonded atoms that acts like a single atom when it combines with other atoms. 2. Acids are often defined as proton donors. 3. Strong acids are poor electrolytes. 4. Weak bases produce small numbers of ions when dissolved in water. 5. Hydrocarbons that contain only single bonds are said to be unsaturated. 6. The 4-carbon alkane is called butane. 7. Compounds that have the same molecular formula but different structural formulas are called isotopes. 8. Petroleum taken directly from the Earth is called asphalt. 9. The process of separating petroleum into its components is called condensing. 10. Polymerization involves the chemical bonding of monomers into polymers. 11. Plastics are examples of natural polymers. 12. One mL is equivalent to one cc.

Chemistry T/F Questions? I forgot my chemistry book at school and I need to do these before the weekend... please don't just guess if you don't know the answer. thanks. TRUE or FALSE 1. A polyatomic ion is a group of covalently bonded atoms that acts like a single atom when it combines with other atoms. 2. Acids are often defined as proton donors. 3. Strong acids are poor electrolytes. 4. Weak bases produce small numbers of ions when dissolved in water. 5. Hydrocarbons that contain only single bonds are said to be unsaturated. 6. The 4-carbon alkane is called butane. 7. Compounds that have the same molecular formula but different structural formulas are called isotopes. 8. Petroleum taken directly from the Earth is called asphalt. 9. The process of separating petroleum into its components is called condensing. 10. Polymerization involves the chemical bonding of monomers into polymers. 11. Plastics are examples of natural polymers. 12. One mL is equivalent to one cc.

I need help on the follwing things in chemistry (give links to websites)? Chemistry 1 How do rocks provide building materials? How do rocks provide metals and how are metals used? How do we get fuels from crude oil? How are polymers and ethanol made from oil? How can plant oils be used? What are the changes in the Earth and its atmosphere? Why have some species of plants and animals died out? How do new species of plants and animals develop? How do humans affect the environment? Chemistry 2 How do sub-atomic particles help us to understand the structure of substances? How do structures influence the properties and uses of substances? How much can we make and how much do we need to use? How can we control the rates of chemical reactions? Do chemical reactions always release energy? How can we use ions in solutions? Chemistry 3 How was the periodic table developed and how can it help us understand the reactions of elements? What are strong and weak acids and alkalis? How can we find the amounts of acids and alkalis?

Going North East Wales Institute(NEWI) in Wrexham, Wales, UK for MPhil. Is it worth ? I already have MSc in polymer chemistry and I am offered an MPhil from North East Wales Institute(NEWI), Wrexham, Wales, UK. It gives the degrees of Uni. Of Wales. How do employers value this degree ? I have to pay 6650 GBP as fees and accomodation is free from them. Is it worth spending ? They are offering me this from their Centre For Water Soluble Polymers. One thing more, what are the chances for me to get a good part-time job ? Looking at my MSc degree, how much hourly pay I should expect ?

Has anyone ever heard of "9/11 Conspiracy Theory Guru" Jim Hoffman? He is one of the 9/11 Conspiracy Guru's often quoted on this board. In doing some research, I found that he isn't a structural engineer, nor a civil engineer, not a chemical engineer, nor even an architect. This "expert" is a software engineer. In his own words: "A software engineer by profession, I have developed new algorithms and applications in computational geometry used in both pure mathematics and polymer chemistry. My work in applying scientific visualization to minimal surface geometry was instrumental in the discovery of the first new examples of complete, finite, embedded minimal surfaces in over two hundred years. My visualizations have been featured in articles in Science News, Scientific American, Science Digest, and Nature." How is that for credible scientific evidence? The quote is from "his" 9/11 Conspiracy website.

Chemistry Scavenger Hunt? I need household objects/products that contain: 1. Simple Hydrocarbon 2. Caustic material 3. An alcohol 4. FDC coloring 5. Chlorinated hydrocarbon 6. Food containing a transition metal 7. Inert gas 8. Food containing three acids 9. Dissolved gas 10. Alloy 11. Natural Polymer 12. Synthetic Polymer 13. Oxidizing agent 14. Natural acid/base indicator 15. Analgesic 16. Hymogeneous Mixture 17. Element 18. Inorganic compound 19. Synthetic compound 20. Lipid.

Help with Chemistry about nylon, please? Nylon is a condensation polymer, which can be produced from the following monomer: HOOC(CH2)4NH2 a) Draw the structural formula of the monomer b) Identify and name all the functional groups in the above monomer. What is the role of the functional groups in the monomer? c) Draw a section of the polymer chain after condensation polymerisation has occurred d) Identify the link that joins the monomers together. Draw the structural formula of the molecule. What type of bonding is involved between the functional groups in this link? e) Name the molecule that has been eliminated in the formation of this nylon polymer

You think YOU KNOW chemistry? please help answer one of my previous Q's about polymers? or suggest to me an industrial polymer to make? (I need to make a model w 2 monomers) because biological polymers are harder to make polyethene, polystyrene, PVC, polyacrylonitrile, DDT, nylon, rubber, vinyl .. are taken for BEST answer unfortunately it has to be organic

chemistry help? 1. Give two examples of monomers and their resulting polymers. 2. Explain how the monomers of fat make a fat molecule (polymer).

Chemistry Question? The percentage composition of a polymer used for the non-stick surfaces of cooking untensils is 24% C and 76% F by mass.. Expalin the steps in determining the empricial formula of the polymer

Chemistry help? Proteins and carbohydrates? Expalin why proteins and carbohydrates are polymers. What is each polymer made of?

Tough Chemistry Problem? This is a question posted by my Chem Prof. I balanced the equation but am unsure of where to go from there: In the production of printed circuit boards for the electronics industry, a 0.60 mm layer of copper is laminated onto an insulating plastic board. Next, a circuit pattern made of a chemically resistant polymer is printed on the board. The unwanted copper is removed by chemical etching and the protective polymer is finally removed by solvents. One etching solution is Cu(NH3)4Cl2 + 4NH3 + Cu -----> 2Cu(NH3)4Cl A plant needs to manufacture 10,000 printed circuit boards, each 8.0 x 16.0 cm in area. An average of 80.0% of the copper is removed from each board (density of copper = 8.9 g/cm^3). What masses of Cu(NH3)4Cl2 and NH3 are need to do this? Assume 100% yield.

Chemistry Conundrum!? If 10 ml of 4% polyvinyl alcohol aqueous solution is mixed with 10 ml of a 4% sodium borate aqueous solution and the mixture completely polymerizes, what is the final percentage of water in the polymer?

Melamine Chemistry? What is the structure, functional group, polymers fromed from this (melamine) monomer, and the uses of the polymer? Please list sources of where information is/was found. Besides wikipedia...

chemistry...? 1. When synthesizing a polymer, a condensation reaction is formed by the _____ joining of monomers. 2.The complement to a DNA strand that has a sequence of CGGCTATA is what? It would help out a lot if you guys could answer this and when answering will you only answer if you are positive of your answer please and thankyou!

Chemistry cracking question... confusing !? This is very confusing to me, I'll write out the question . --------------------------------------------------------------------------------- Cracking of the unbranched compound E, C6H14 produced the saturated compound F and unsaturated hydrocarbon G (Mr: 42). Compound F reacted with bromine in UV light to form a monobrominated compound H and an acidic gas I. Compound G reacted with hydrogen bromide to form a mixture of two compounds J and K. (a) Use this evidence to suggest the identity of each of compounds E to K. Include equations for the reactions in your answers. (d) Oil companies often 'reform' compounds such as E. Explain why this is done and suggest two organic products of the reforming of E (c) Predict the structure of the polymer that could be formed from compound G ----------------------------------------------------------------------------- I can't follow this. Could anyone help me?