distinctive coloured vapour. (ii) Forms a blue-black complex with starch and in biology the test is used to detect starch with iodine solution. Tests for Halide Ions In test (i) the silver nitrate is acidified with dilute nitric acid to prevent the precipitation of other non-halide silver salts. Test for halide ion Test method Observations Test chemistry and comments Fluoride Ion F- Fluoride and hydrogen fluoride gas are harmful‚ irritating and corrosive substances. (i) If the suspected fluoride is
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REACTION PAPER (ON-PREMISE CATERING) During our on- premise‚ I’ve learned a lot of things like how to prepare that kind of event‚ how to set up‚ how to prepare everything. And to become success the event we must cooperate‚ be unite so that would finish as soon as possible‚ that day were so busy‚ each everyone of us was working‚ but there are some times who are not working‚ of course we can’t avoid that‚ but we are trying our best 2 finish it. There program was started‚ everyone and everything was
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complex reactions and reaction sequences‚ where raw materials react together to give the product. Such chemical process often releases energy‚ in the form of heat‚ and the reaction is described as exothermic. Many of these reactions may also evolve gases at high rates‚ and could cause reactor over-pressure. Thermal runaway reaction Runaway reactions are thermally unstable reactions where the heat of reaction can raise the temperature of the reactants sufficiently to accelerate the reaction rate out
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9/25/13 Endothermic Reaction Lab Report The Effect Ammonium Nitrate has on the Temperature of Water During this lab students are going to mix water and ammonium nitrate one gram at a time and observe the change in temperature that is occurring. The students are then going to record the data on a table and later will be able to make a graph of the results. A hypothesis for this lab could be if ammonium nitrate is added to water then the water temperature will decrease. . Hypothesis: If
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Trapal‚ Mariel B. Prof. T.D. Macasil BSE Physical Science Reactions of amines Reaction of amines with acids – acids and amines form ammonium salts. R – NH2 + HCl → R – NH3+ + OH – Amine acid amine salt Example 1 CH3 – NH2 + HCl → CH3 – NH3 + Cl- Methylamine Methylammonium Example 2 CH3CH2 – NH3 + Cl → CH3CH2NH2 . HCl Ethylammonium Ethylamine Reaction of amine with water – when amines react with water‚ they produce hydroxide ( OH
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experiment‚ equilibrium will be examines in the reaction beteween the iron (III) ion and the thiocyanate ion: Fe3+ (aq) + SCN- (aq) ------ FeSCN2+ (aq) The FeSCN2+ complex ion has a blood red color while the iron and the thiocyanate ion are colorless. Therefore‚ the shift in the reaction can followed by noting a change in the intensity of the clood red color‚ which indicates a change in the concentration of the complex ion FeSCN2+. If the reaction shifts to the right‚ the blood red color will get
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Anthony Young Partner: Nick Dale TA: Alekhya 6/15/15 The SN2 Reaction: Factors Affecting SN2 Reaction. Introduction In the substitution reactions‚ the leaving group from the substrate is replaced with the nucleophile. Because of the nucleophile it is called nucleophilic substitution. The lone pair of electrons‚ present on the nucleophile is used to create a new bond with the carbon atom‚ from which the leaving group was separated. There are two different mechanisms of nucleophilic substitution: SN1
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A REACTION PAPER ON THE TALKSHOW STRAIGHT FROM THE HEART YEAR 2 VALUES EDUCATION S.Y. 2012-2013 I. Introduction: This year‚ is the year 2 of the said talk show in which the Holy Name University High School Department were preparing. The title of the talk show was STRAIGHT FROM THE HEART YEAR 2. Of course‚ the talk show can’t be done without our handsome and beautiful guests. The 1st guest was our own Fr. Ruel Lero. The 2nd guest was the wife of Gov. Edgar Chatto‚ Mrs. Pureza Chatto‚ the
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Discussion The reaction through which 4-mrthaoxyacetophenone is converted to 4-methoxybenzoic acid is a haloform reaction. This reaction involves two distinct stages that occur in the same environment. The first stage occurs through the based-catalyzed halogenation of the ketone that forms a trihalo ketone. First‚ the bleach is transformed into chlorine and hydroxide ions through the following reaction: Then‚ the hydroxyl is able to attack the rather acidic (pKa ~ 20) α-hydrogen of the ketone
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Alissa L. Munez Dr. Trinidad MBA- Colegio de San Juan de Letran Portfolio Management Reaction Paper Natural Disasters and the Philippine Stock Exchange Index: A Garch-M Analysis by Adrian P. Gallido‚ Ph.D. and Martites A. Khanser‚ D.B.A This study examines the effect of earthquakes‚ tropical cyclones and volcanic eruptions on the Philippine Stock Exchange index (PSEi) over the period of 2 January 1985 to 30 December 2010. In the context of the Philippine Market‚ the composite index can be seen
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