Biology Notes : Chapter 2 : Organic chemical compounds include : Saccharides‚ Proteins‚ lipids and nucleic acid. Functions of water are : Acts as a solvent For excretion of metabolites Acts as medium of transport For supporting and maintaining of shapes Acts as a medium to carry out biochemical reactions. Helps in lubrication Maintains body temperature Has high tension and cohesion Provides moisture Maintains osmoic balance and turgidity Saccharides : (a.k.a Carbohydrates)
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BEAUTY WITHOUT CHEMICALS When we talk about beauty‚ the first thought that comes to our mind is about how we look physically especially our face. Well I would like to talk on taking care our facial skin without any chemicals which means we use natural sources instead of fancy artificial chemicals. It is always better for us to consume as the chemicals usage in long run do give negative effects. Based on the research from in the internet‚ advices from other as well as from my own experience‚ I
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Dow Chemical Case Question 1 Polyethylene is the world’s most widely used plastic. Polyethylene plastic’s principal application was in packaging‚ from trash bags to milk jugs. It was widely used in the manufacture of everything from trash bags‚ picnic cutlery and garbage pails‚ to plastic toys. Polyethylene also replaced glass‚ wood‚ and metal in certain applications. There were three types of polyethylene‚ Low-density polyethylene‚ High density polyethylene and Low linear density polyethylene
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Gonzales Mrs. Krametbauer English III 10 November 2014 Why Chemical Engineering? Individuals take engineering as something distance to their lives due to rigorous courses to get through. As some would say that it is not worth it‚ other clever individuals have figured this out. To be a chemical engineer‚ an individual explores and takes on other sciences to create important products to better peoples lives. As Mark and Sherri Devaney stated‚ “…Chemical Engineers are charged primarily with finding ways to
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Test Anxiety is defined by Kondo (1996) as a double situation specific personality trait‚ consisting of two psychological components; emotional arousal and worry. Several studies have focused on test anxiety‚ as it is associated with lower test results and a higher amount of stress‚ so has attracted attention from researchers and teachers (Hembree 1998; Sarason and Sarason 1990) as cited in Kondo (1996). Most of the focus has been to reduce test anxiety by investigating the cognitive‚ affective
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5. ENERGY BALANCE Basis:- 1 Hr. Operation ENERGY BALANCES ACROSS THE FEED PREHEATING EQUIPMENT:The heating of cold 2-butanol feed is to be completed in three stages in order to avoid large heat losses. The cold feed is first preheated to its boiling point using steam as heating medium and then vaporized in a thermosyphon reboiler utilizing the heat contained in the reaction products. The vapor‚ which has entrained liquid is removed from the knock out drum‚ and then heated to reaction temperature
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no need for distillation. Next‚ a solubility test was given. When one drop of the unknown liquid was added to about 2 mL of water‚ the sample was tested to be soluble due to the dissolubility between the two compounds. By following the chart that was given on the sheet‚ the pH of the solution was tested. Since the two litmus did not changed color‚ the sample was identify to have a low molecular weight and a neutral substance. Based on the solubility test‚ some possible
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1) Please locate the SDS for the chemical 4-Butylbiphenyl by Sigma Aldrich. Provide the website link for this SDS and answer the following questions: (5 points: 1 point each for a-e) a) Website: http://www.sigmaaldrich.com/MSDS/MSDS/DisplayMSDSPage.do?country=US&language=en&productNumber=545163&brand=ALDRICH&PageToGoToURL=http%3A%2F%2Fwww.sigmaaldrich.com%2Fcatalog%2Fproduct%2Faldrich%2F545163%3Flang%3Den b) In what section do you find the classification of the substance or mixture? Is
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GLOBAL HEAVY CHEMICALS LIMITED Offer Price : Tk. 20/= with premium Tk. 10/= No. of Shares : 1.20 Crore Total Amount : 24.00 Crore Subscription : 09-13 November Bangladesh Chemical Industry at a Glance: Bangladesh Chemical Industries Corporation (BCIC)‚ a state owned enterprise‚ is the pioneer in chemical industry in Bangladesh with concentration in producing fertilizer‚ acids‚ alkali‚ ammonia‚ chlorine‚ paper‚ pulp‚ rayon‚ bleaching powder etc. However‚ private
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Topic 1: Subject‚ tasks and methods of pathophysiology. General nosology‚ etiology and pathogenesis. 1. A 49-year-old man was suffering 12 years ago from rheumatic myocarditis‚ endocarditis‚ and insufficiency of mitral valve. Examinations showed the absence of inflammatory process‚ sufficient minute blood volume. What is it? A. Pathological reaction B. Pathological process C. Typical pathological process D. Compensatory reaction E. Pathological
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