Thomas Newberg Chemical Weapons Convention Historically chemical weapons are rarely seen in combat but when they are they are used to great effect‚ killing thousands and injuring many more. Chemical weapons were first used in combat in May 1915 when the Germans released chlorine gas against the French in the Battle of Ypres. Over the course of WWI new chemical agents were developed including cyanide‚ phosgene and mustard gas. The Geneva Protocol of 1925 condemned chemical weapons but states that
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Danga‚ Angelica Marie G. IV- St. Therese of Lisieux Critical Analysis on Smog Merchants Pollution has been one of the big problems of our world. This has pushed many people who are concern enough to create programs that will help reduce the problem and this Smog Merchants article is technically‚ one of those. But I don’t think marketing the right to pollute will help in any way. It is more like allowing destruction to come to the environment. In this article‚ it was implied that firms that
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ICT Design DC DPP CE MS GRADE 11- CHMISTRY INVESTIGATION investigating the properties of Period 3 oxides Aim The purpose of this experiment is to examine the oxides of Period 3 elements and describe their bonding and structure. Introduction You carry out an investigation along similar lines to the work you did on the chlorides of the elements in Period 3 (Experiment 4.12). However‚ you will not be asked to test the oxides with cyclohexane because unlike the covalent chlorides
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DESIGN OF AN ABSORBER Problem statement To design an absorber (packed tower) for the absorption of 785.15 kg/h of sodium metabisulphite (Na2S2O5) at an average temperature of 68˚C and Y atm pressure with sulphur dioxide gas counter-currently reacting with Na2SO3 rich feed. Introduction Absorbers are vertical towers used in distillation‚ gas absorption and liquid-liquid extraction processes. Absorbers can be operated co-currently or counter currently. In the former‚ both fluids involved are fed
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Limiting Reagents and Percentage Yield Worksheet 1. Consider the reaction I2O5(g) + 5 CO(g) -------> 5 CO2(g) + I2(g) a) 80.0 grams of iodine(V) oxide‚ I2O5‚ reacts with 28.0 grams of carbon monoxide‚ CO. Determine the mass of iodine I2‚ which could be produced? 80 g I2O5 1 mol I2O5 1 mol I2 1 333.8 g I2O5 1 mol I2O5 28 g CO 1 mol CO 1 mol I2 253.8 g I2 1 28 g CO 5 mol CO 1 mol I2 b) If‚ in the above situation‚ only 0.160 moles‚ of iodine‚ I2 was produced
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DIWALI Firecrackers and fireworks are popular on the eve of Diwali. Firecracker Concerns Nowadays there is a significant growth in campaigns on creating awareness over the adverse impacts of noise and air pollution. Some governments drive to keep the festival less noisy and pollution-free. The Tamil Nadu Pollution Control Board has banned production of crackers with noise levels of over 125 decibels.In survey of UP Pollution Control Board‚ it was revealed that the emission of smoke was found more
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Keep Your Driveway Looking Like New With A Sealcoat If your asphalt driveway is still fairly new and in good shape‚ you should consider having a sealcoat applied to protect it from deterioration. A sealcoat prolongs the life of the asphalt and enhances its appearance by restoring the dark color. It’s a good idea to have a new coating applied every few years over the life of the driveway. Here are a few things you may want to know. Why Sealcoating Is Necessary Your asphalt driveway slowly deteriorates
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rain This source discusses all the types of corrosion: • Miller‚ L. (2003‚ July 31). Corrosion. Retrieved April 3‚ 2009‚ from http://www.nsls.bnl.gov/about/everyday/corrosion.asp This source discusses how the corrosion known as rust (or iron oxide) forms: • Howstuffworks.com. (2009). How does rust work? Retrieved April 3‚ 2009‚ from http://www.howstuffworks.com/question445.htm These sources describe what acid rain is: • Buchdahl‚ J. (2003). Acid rain. Retrieved April 3‚ 2009‚ from
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← Understand the manufacture of sulphuric acid. ← Synthesise the manufacture of ammonia and its salts. ← Understand alloys. ← Evaluate the uses of synthetic polymer. ← Apply the uses of glass and ceramics. ← Evaluate the uses of composite materials. ← Appreciate various synthetic industrial materiala. (H4SO4) ← USES OF SULPHURIC ACID 1. Sulphuric acid is used to produce chemical fertilizer such as ammonium sulphate and potassium sulphate‚ which are highly soluble in water
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DELHI PUBLIC SCHOOL DAGAPUR ‚ SILIGURI (Affiliated to C.B.S.E.) Session :- 2012-13 Topic : Study of effect of Potassium bisulphite as a food preservative Submitted To: Submitted By: Mr. B.GHOSH H.O.D. Chemistry 12th Science Roll no. = Certificate This is to certify that s/o Mr. Amar Singh is a bonafide student of class XIIth Science during session 2012-2013. He has completed his project on Study of effect of Potassium bisulphite
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