The best ways to classify synthetic polymers is by the chemical processes used to produce them; addition polymerization and condensation polymerization. Generally‚ three important reactions take place in addition polymerization: initiation (birth)‚ propagation (growth)‚ and termination (death). Addition polymers‚ commonly known as chain growth polymers‚ are made through a chain reaction in which an alkene monomer is incorporated into the growing chain by reacting with a reactive intermediate. This
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sent down from central government. Usages of Petroleum Petroleum is mostly used as Fuel. Several other hydrocarbon chemicals can be distilled out of petrol which again can be used for a variety of purposes. Some of petrol’s end products are- Alkenes (olefins) which can be manufactured into plastics or other compounds Lubricants (produces light machine oils‚ motor oils‚ and greases‚ adding viscosity stabilizers as required). Wax‚ used in the packaging of frozen foods‚ among others. Sulfur or
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GROUP MEMBERS: VIMAL SIEWNARINE - #52844 JASON MATHURA - #60927 FIDEL MENDOZA- #56834 BRAD NANDO- # VIMAL BALAY - #52555 CRISTINA LUTCHMAN -#52516 LAB #1‚ #2‚ #3‚ #4 CHEM 2006 -ANALYTICAL INSTRUMENTATION LECTURER – MRS. TRICIA JONES LAB 1 TITLE: Organic Compound Identification Using Infrared Spectroscopy Aim: To identify the functional groups in organic compounds using infrared spectra. APPARATUS AND REAGENTS: Nicolet 380FTIR
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8. AHydrocarbons Ahydrocarbons are commonly and naturally occurring organic compounds that consist entirely of the elements hydrogen and carbon. They consist of many different chemical subgroups such as aromatic hydrocarbons or arenes‚ alkanes‚ alkenes‚ and alkyne-based
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Key Questions Unit Two Lesson Five 91/92= 99 % 15. a) 2‚3‚5-trimethylhexane b)3-ethyl-2‚4‚6‚7-tetramethyloctane c)2‚2-dimethylpentane 6 16. a)3-ethyl-3-methylhexane CH3 | CH3-CH2-CH-CH2-CH2-CH3 | CH2CH3 b) 1-ethyl-3-propylcyclohexane c) 2‚4-dimethylheptane CH3-CH-CH2-CH-CH2-CH2-CH3
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Brochure BITSAT-2013 A Computer Based Online Test for Admission to Integrated First Degree programmes of BITS‚ Pilani‚ 2013-14 The Birla Institute of Technology and Science (BITS) Pilani is an all India Institution declared as Deemed to be University under Section 3 of the UGC Act. Admissions to all the Integrated First Degree programmes of BITS‚ Pilani‚ at Pilani campus‚ Goa campus‚ and Hyderabad Campus for the academic year 2013-14 will be made on the basis of a Computer based Online Test
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A Discussion of Banking-Concept Limitations What do students obtain through education? Freire in his essay ‘The Banking Concept of Education’ argues that students gain useless and meaningless knowledge through education‚ and I agree with Freire because education has become an act of depositing meaningless information into students. Freire believes the current educational system is flawed due to the “Banking Concept”‚ which Freire describes as‚ “an act of depositing‚ in which the students are the
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Chemistry Revision F331 Isotopes - atoms with the same atomic number‚ but different mass numbers 131I - radioactive tracer for thyroid. 99Tc for tumours. Radioisotopes - gamma emitters & short half life - long enough to detect‚ but not long enough for damage. Beta particles emitters are more useful than alpha particle emitters because they penetrate more and so are more easily detected. Also‚ less damaging. The half life is the time taken for half the isotope to decay Mass left = initial
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Experiment 7- Isolation of the Major Component of Clove Oil Pre-Lab Questions: 1.) Briefly explain the concept of steam distillation. What is the difference between a simple distillation and a steam distillation? When a mixture of two immiscible liquids are distilled it is referred to as codistillation. This process is referred to as steam distillation when one of the liquids is water. This distillation is used to separate organic liquids from natural products and reaction mixtures in which
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Xxx.comTheories of light In the seventeenth century two rival theories of the nature of light were proposed‚ the wave theory and the corpuscular theory. The Dutch astronomer Huygens (1629-1695) proposed a wave theory of light. He believed that light was a longitudinal wave‚ and that this wave was propagated through a material called the ’aether’. Since light can pass through a vacuum and travels very fast Huygens had to propose some rather strange properties for the aether: for example; it must
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