Cl2O Melting Point (C) 460 2825 2072 1700 340 -120.6 Boiling Point (C) 657 3600 2977 2230 360 2.2 State at STP Solid Solid Solid Solid Solid Liquid Action of water Dissolve in water and form alkaline solution Slightly dissolve in water and form alkaline solution Insoluble in water Insoluble in water Dissolve in water and form acidic solution Dissolve in water and form acidic solution pH of aqueous solution 14 9 7 7 1 3 Acid-base nature Basic Basic Amphoteric
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complete. Chemists also need to monitor how acidic or alkaline waste solutions from industries are before they are pumped into rivers or the sea. Regulations are strict as wastes or effluent that are too acidic or too basic can be harmful to the environment. • • Many people who are not chemists use indicators for: The water in aquariums needs to be tested. Fish are sensitive to changes in their water. If the water becomes too alkaline or too acidic it will kill fish and plants. The water
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to the coupling of diazonium. 2. To understand the characteristic of dye orange II. INTRODUCTION The first dye was introduced by William Henry Perkin on 1856. It can be produced by the coupling of diazonium sulfanilic acid with nafthol in alkaline solution.. This was the common method used to produce dye nowadays. In this experiment‚ dye produced was the orange II. Azo compound is compound that contain azo group (-N=N-) between the conjugated aromatic ring and absorb light to show. Azo compounds
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behavior of elements Procedure: 1. Number the groups. 2. Number the periods 3. Draw a heavy black line between the metals and nonmetals. 4. Write the name of each of the following groups above the number: Group 1 alkali metals Group 2 alkaline earth metal Group 3-12 (collectively) transition metals Group 16 chalcogens Group 17 halogens Group 18 Noble gases 5. Write the names of the two rows at the bottom of the chart: lanthanides and actinides 6. Write the symbol
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Original Text: from page 317 of the book Psychology‚ 1996 by Richard Gross But it is not only the vocabulary of a language that determines how and what we think and perceive but also the grammar. In the Hopi language‚ no distinction is made between past‚ present and future; it is a ‘timeless language’ (compared with English)‚ although it does recognise duration‚ i.e. how long an event lasts. In European languages‚ ‘time’ is treated as an objective entity‚ as if it were a ruler with equal spaces
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Microbiology-2460 Lab-003 March 31‚2008 Lab Report-Escherichia coli Abstract The purpose for this lab report was to identify and inform of an unknown bacteria that has been causing a patient to have lower abdominal and pelvic pain. To obtain the identification of this unknown bacterium‚ several biochemical tests needed to be performed in order to prescribe the correct medication to treat and cure the symptoms. Introduction In a lab today‚ I am to identify an unknown bacterium that is
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Interpretation From the graph the enzyme Trypsin has 51% light transmission at pH 2. At pH 9 the Trypsin has 39% light transmission. Between pH 2 and pH 9 the percentage of light transmission decreases at a steady rate‚ until it reaches pH 8 where there is a steep increase from 30% to 39% as the enzyme has reached its optimum pH at 8. During the experiment in the boiling tube this pH had the deepest red colour as the most protein gelatine was broken up. This meant that in the colorimeter when testing
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Gillette’s Energy Drain (A): The Acquisition of Duracell MACK Consulting Michelle Neill‚ Ali Nassem‚ Cindy Arsenault‚ Krystal Mayne‚ Charlene Ford‚ Laura Robertson March 20‚ 2008 Bus 491 - Gary Evans PROBLEM STATEMENTS – STRATEGIC ISSUES The Duracell Division of Gillette has lost market share and failed to move forward in the last four years‚ which may be the result of a lack of strategic vision and/or mandate from Gillette’s Board of Directors. It is our opinion that perhaps too much
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on the pipe-work and tanks. Because of the potential adverse quality effects (see chlorine below)‚ this has largely been discontinued.[citation needed] [edit]pH adjustment Distilled water has a pH of 7 (neither alkaline nor acidic) and sea water has an average pH of 8.3 (slightly alkaline). If the water is acidic (lower than 7)‚ lime‚ soda ash‚ or sodium hydroxide is added to raise the pH. For somewhat acidic waters (lower than 6.5)[citation needed]‚ forced draft degasifiers are the cheapest way
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that many of the chemical reactions used for their preparation are oxidations. In this experiment‚ an aromatic carboxylic acids namely benzoic acid will be prepared by oxidizing benzyl alcohol which is a primary alcohol. The oxidizing agent used is alkaline potassium permanganate (VII). Benzyl alcohol is an aromatic alcohol with the formula C6H5CH2OH. It is a primary alcohol because the carbon atom which the hydroxyl group‚-OH group is connected joins to one alkyl group and two hydrogen atoms.
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