the source‚ who produced it‚ or what it was used for and if there is any other information surrounding it in the museum. Machine guns killed a lot of people in the war but gas attacks also killed many soldiers‚ there a two types of gas attacks; a chlorine gas attack (turns all the air in your lungs to water‚ forcing you to drown) and a mustard gas attack (which burns all of your mouth) the soldiers could either have just experienced a gas attack‚ about to set one off or are preparing themselves for
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ICSE Class X Chapter 5 Hydrogen Chloride and Hydrochloric Acid Hydrogen chloride (HCl) : Formula : HCl Nature : Covalent. Molecular Mass : 36·5u [i.e. HCl = 1 + 35·5 = 36·5] Occurrence : (i) Present in gastric juices. (ii) Present in volcanic gases. Laboratory preparation of HCl gas : Hydrogen chloride gas is prepared in laboratory by heating conc. H2SO4 with NaCl. NaCl + H2SO4 Heat → NaCl + NaHSO4 Heat → NaHSO4 + HCl Sodium hydrogen sulphate Na2SO4 + HCl
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Testing for Ions Analysis Chemical Changes of Test Solutions Test Solution Silver Nitrate Barium Chloride Potassium Thiocyanate Sodium Sulfate - Stayed white in color - Turned cloudy in color - Precipitation formed in solution - Stayed white in color Potassium Chloride - Turned cloudy in color - Precipitation formed in solution - Stayed white in color - Stayed white in color Iron (III) Nitrate - Stayed orange in color - Stayed orange in color - Changed color from orange
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To begin‚ the author‚ Wilfred Owen‚ used a majority of the poem to focus on the use of gas. It uses the imagery of an overwhelming truth of war. In doing this‚ Owen wrote‚ “As under a green sea‚ I saw him drowning.” (14) This sets the image of chlorine gas‚ too strong to handle‚ taking the life of a soldier. It hits the reader with the “poisonous truth” that one has to be on their wits at all times in warfare‚ with the helmet being a symbol for preparedness. They were not prepared for the danger
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Desiree Trujillo March 6th‚ 2013 Lab # 3 Chemistry 101 Physical & Chemical Properties Purpose To examine the physical and chemical properties of multiple natural chemical substances‚ and to determine which changes are chemical and which are physical. Data Solubility or Reaction | SubstanceName | Color | Odor | Effectof Heat | ColdH2O | HotH2O | LitmusTest | DiluteHCl | DiluteNaOH | Mg | Silver
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Chlorine gas is capable of ruining a person’s respiratory tracts and was the start to this deadly substance being used. After the war‚ chlorine gas along with others was continued to be used as a weapon such as in the holocaust and the mistakes made in Ypres helped further enhance the effectiveness of the gas attacks. Although the gas attacks and chlorine gas being used is nothing to be proud of‚ it was still a very important
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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education *1144188971* COMBINED SCIENCE Paper 2 (Core) 0653/21 October/November 2010 1 hour 15 minutes Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number‚ candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use a soft pencil for any diagrams‚ graphs‚ tables or rough working
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crystalline adipic acid. OBJECTIVE: Experiment 4: To recover cyclohexanone from the oxidation of cyclohexanol by hypochlorite Experiment 6: To recover adipic acid from the oxidation of cyclohexanone CHEMICAL REAGENTS Cyclohexanol Acetic Acid Chlorine (Bleach) Thymol Blue (indicator) Sodium Hydroxide These reagents were all used during experiment 4. APPARATUS USED Simple distillation apparatus 250mL round bottomed flask PROCEDURE: Experiment 4 8 mL of cyclohexanol was placed into a 250 mL
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Abstract The chloride present in an unknown soluble sample was precipitated into silver chloride through precipitation gravimetry. The colloidal silver chloride originally formed was converted to a crystalline solid by controlling certain parameters of the experiment such as temperature‚ pH of the solution‚ and concentration of AgNO3. Once the solid was large enough‚ it could be washed‚ filtered‚ and weighed. The percentage of chloride present was found to be 24.73695223 (±0.00000006) %.
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HKDSE Chemistry – A Modern View 1 (SAMPLE) Suggested Answers (Coursebook) |Chapter 1 The fundamentals of chemistry | |Class Practice |1 | |Chapter Exercises |3 | |Chapter 2 The atmosphere
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