protection in terms of the reactive series of metals and galvanizing as a method of rust prevention | | | Supplement | | 8 | Describe the separation of oxygen and nitrogen from liquid air by fractional distillation | Describe the essential conditions for manufacture of ammonia by the harbor process including the sources of the hydrogen and nitrogen | | 10 | Describe and explain the presence of oxides of nitrogen in
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immunoadjuvant potential of Ayurvedic medicines. The ethnopharmacology knowledge, is holistic and systems approach supported by experiential base can serve as an innovative and powerful discovery engine for newer, safer and affordable medicines. The Process of Modern Drug Discovery using Ethnopharmacology The first stage should be the reported use of a natural occurring material for some purpose which can be related to a medicinal use. There must be an indication of a genuine effect and therefore, the
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NAJIB MOHAMMED ELFITOURI 30 Burns Street Fredericton, NB, E3G 4C8 CANADA Email: NAJIBELFITOURI@GMAIL.COM +1-506-455-5166 Objective: • Oil and Gas Processing /Chemical Process Engineering Job in Oil and Gas Fields. • To evolve around creating processes and designs, as well as maintenance and operations duties in a variety of different disciplines. • Performing Engineering Studies, improving all the existing projects and supervising the new installation and performing
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during respiration and combustion. Water covers a total of about three quarters of the Earth. The sources of water are oceans, seas, rivers, lakes, rainfall and ground water. Importance of water a. To animals/human i. It provides a medium for chemical process and body metabolism ii. It is the main component of the blood iii. It transports nutrient to all cell in the body iv. It caries excretory products to the kidneys for excretion. v. It helps to control the body temperature. b. To plants i. It helps
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a physical change is the process of tempering steel to form a knife blade. A steel blank is repeatedly heated and hammered which changes the hardness of the steel, its flexibility and its ability to maintain a sharp edge. Methods Heating and cooling Many elements and some compounds change from solids to liquids and from liquids to gases when heated and the reverse when cooled. Some substances such as iodine and carbon dioxide go directly from solid to gas in a process called sublimation. Magnetism
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Dehydration | Dryness resulting from the removal of water | Sự mất nước | Fermentation | A process in which an agent causes an organic substance to break down into simpler substances | Sự lên men | Grain | A relatively small granular particle of a substance | Hạt, hột | Pasteurization | The process of heating and then cooling a liquid | Diệt khuẩn theo PP Paster | Refrigeration | The process of cooling or freezing for preservative purposes | Sự làm lạnh | Yield | Be flexible under
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Objective: Analyzing three of the fraction samples from the previous lab: “Separation, Extraction, Fractional Distillation & Gas Chromatography” to determine the contents purity Equations: Area of peak=1/2HxW % composition= (Area of peak/Total area of peak(s)) x 100 Properties: Diethyl ether 1,2-dimethoxy ethane Formula C4H10O3 ClCO(CH2)8COCl Melting Point −116.3 °C -58°C Boiling Point 62 - 64 °C 82 - 83°C Density 1.005 g/cm3 1.121 Physical
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Lithium: Lithium is the third element on the periodic table which makes its atomic number three. The symbol that is associated with lithium is Li as shown in the spelling of my first name. The atomic mass of lithium is approximately seven. Since the number of protons and electrons are equal to the atomic number, they equal three for lithium. The number of neutrons in lithium equals four. Lithium is a light, silver-white metal which therefore makes it a solid. After the mineral it is in is heated
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formula is stated below: 2 ZnO (l) + C → 2 Zn (l) + CO2 (g) Step 5: Evaporation The ore changes its state as gas and leave the impurities behind. Step 6: Further purification Either fractional distillation or Electrolytic refining is applied to concentrate the impure zinc. c. The whole procedure of two extractions are very similar. At the beginning of extraction, both ores are needed to be ground by crushing to get rid of gangue. In
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extinguishes fires without damaging the equipment that is burning, it’s used in museums to protect old documents and materials, it’s used to inflate scuba diving dry suits, it keeps open bottles of wine from turning into vinegar during the aging process, and it’s used for thermal insulation on windows because of its low thermal conductivity. Argon lasers are also used to weld arteries, destroy tumors and correct eye defects in surgery. It’s used in black lights, and UV lamps since the excitation
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