ABSTRACT Nature has been a source of medicinal agents for thousands of years and an impressive number of modern drugs have been isolated from natural sources Plants used for traditional medicine contain a wide range of substances that can be used to treat chronic as well as infectious diseases. Clinical microbiologists have great interest in screening of plants for antimicrobial activities and phytochemicals as potential new therapeutics. The use of plant extract for medical treatments is enjoying
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4. Draw: glycerol ANS: 5. Draw: 2‚ 4‚ 6-trinitrophenol ANS: IUPAC Naming Instructions: Provide proper IUPAC names. 6. Name: ANS: (E)-2-ethylbut-2-en-1-ol 7. Name: HOCH2CH2OH ANS: 1‚ 2-ethanediol or ethylene glycol 8. Name: ANS: allyl alcohol or 2-propen-1-ol 9. Name: ANS: hydroquinone or p-dihydroxybenzene or 1‚4-benzenediol Exhibit 17-1 Rank the following groups of compounds from most acidic (1) to least acidic (4)
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Greenhouse effects and global warming are an uprising environmental issue. The greenhouse effect is the process by which absorption and emission of infrared radiation by gases are released in the atmosphere. The major greenhouse gases are water vapor (36 -70%)‚ carbon dioxide CO2 (9-26%)‚ methane CH4 (4-9%)‚ and ozone O3 (3-7%). Since the industrial revolution‚ human activity has increased the amount of greenhouse gases‚ leading to increased levels of CO2‚ methane and troposphere ozone. Fossil fuels
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ANALYSIS ABOUT THE EFFECTS OF INDUSTRIAL PRODUCTIONS ON AIR POLLUTION Lu Li‚ Zhaowei Liu ECON508: Applied econometrics May 10‚ 2013 Abstract In China‚ many environmental problems have been ignored when it mainly focused on a higher pace of economic growth for a long time. In this paper‚ we aim at finding the relationship between air pollutions and its potential contributor—industrial development. And we are also interested in finding out which
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14.1 Multiple-Choice and Bimodal Questions 1) Consider the following reaction: The average rate of appearance of B is given by. Comparing the rate of appearance of B and the rate of disappearance of A‚ we get A) -2/3 B) +2/3 C) -3/2 D) +1 E) +3/2 2) Nitrogen dioxide decomposes to nitric oxide and oxygen via the reaction: In a particular experiment at 300 °C‚ drops from 0.0100 to 0.00650 M in The rate of appearance of for this period is __________ M/s. 3) Which substance
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refurbishment‚ and field services. We have expertise in all facets of pressure vessel design and fabrication‚ specialising in cryogenic applications for products including Oxygen‚ Nitrogen‚ Argon‚ Carbon Dioxide‚ LNG (Liquefied Natural Gas)‚ and Ethylene. We Have the Pleasure of Providing Products and Services to Some of the Worlds Larger Companies Ach as B.O.C. (MEMBER OF LINDE GROUP) ‚ COREGAS ‚ SUPAGAS (100% AUSTRALIAN) ‚ AND HALLIBURTON. ORGANISATION STRUCTURE CHART
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xam 2 [pic] Summer 2011 Chemistry 1411 EXAM # 2 Activity Series of Metals in Aqueous Solution [pic] CHEM 1411 Exam # 2A Name:________________________________ (Chapters 4‚5‚6‚ and 7) Score: [pic] Part I- ( 3 points each) - Please write your correct answer next to each question number‚ DO NOT CIRCLE. ____ 1. Compare the rates of effusion of CO2 & SO2‚ rCO2/rSO2 A. CO2 will effuse 1.45 times
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Thermite Background: Thermite is a powder made from aluminum powder and a metal oxide [usually iron oxide (Fe2O3‚ known as rust)]. The thermite reaction is a redox reaction‚ where Aluminum reduces the oxide of another metal. For example‚ when using iron oxide (as I did) the equation would be Fe2O3(s) + 2 Al(s) -> Al2O3(s) + 2 Fe(l). Black or blue iron oxide (Fe3O4) could also be used. Other examples of possible oxides are manganese thermite (MnO2)‚ Cr2O3‚ and copper thermite (CuO). Aluminum can
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thermoset constitutes approximately 20% of total post-consumer plastics waste generated in India. The Thermoplastics are recyclable plastics which include; Polyethylene Terephthalate (PET)‚ Low Density Poly Ethylene (LDPE)‚ Poly Vinyl Chloride(PVC)‚ High Density Poly Ethylene (HDPE)‚ Polypropylene(PP)‚ Polystyrene (PS) etc. Thermoset plastics contains alkyd‚ epoxy‚ ester‚ melamine formaldehyde‚ phenolic formaldehyde‚ silicon‚ urea formaldehyde‚ polyurethane‚ metalised and multilayer
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REACTIONS OF HYDROCARBONS Vanessa P. Manibpel De La Salle University - Dasmariñas ABSTRACT Five substances namely Hexane‚ Eugenol‚ Unknown hydrocarbon 1‚ Unknown hydrocarbon 2‚ and Acetylene gas was used for the selective reactivity of hydrocarbons to functional group tests; Bayer’s test‚ Bromine test light‚ Bromine test dark‚ and Tollen’s test. In Bayer’s test‚ only Acetylene‚ Eugenol and Unknown hydrocarbon 2 reacted positively and the rest retain the purplish color of KMnO4. On the other hand
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