“A brief history of chemical warfare” By Harold Maass For more than 2‚000 years. As early as 600 B.C.‚ the Athenians poisoned the wells of the Spartans‚ who later tried lobbing burning sulfur pitch over the walls of Athens‚ hoping to fill the city with toxic smoke. Genghis Khan used that same trick‚ catapulting burning sulfur pitch during his siege of fortified cities around A.D. 1200. Over the centuries‚ various armies put poisons on arrows and in bullets to make them more lethal. But it wasn’t
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Lab #5 Chemical Reactions & Balancing Equations Objectives Observe and classify several chemical and physical changes. Give evidence for the occurrence of a chemical reaction. Write a balanced equation for a chemical reaction. Identify a reaction as a combination‚ decomposition‚ replacement‚ or combustion reaction. Background Physical properties can be observed without changing the chemical composition of the substance. Common physical properties that can be measured without changing the chemical
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Problem Set 3 1. Louise McIntyre’s monthly gross income is $2‚000. Her employer withholds $400 in federal‚ state‚ and local income taxes and $160 in Social Security taxes per month. Louise contributes $80 per month for her IRA. Her monthly credit payments for VISA‚ MasterCard‚ and Discover card are $35‚ $30‚ and $20‚ respectively. Her monthly payment on an automobile loan is $285. What is Louise’s debt payments-to-income ratio? Is Louise living within her means? Louise’s Gross Income | =
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Case 20: Diamond Chemicals plc (A) --PT07 Group 10 INTRODUCTION: Diamond Chemicals is a large worldwide chemicals producer with two factories in Liverpool England and Rotterdam Holland. Both of their plants were built in 1967 with annual output of 250‚000 metric tons polypropylene. Compare with low-cost producer‚ the production cost per ton is 1.09 which is a little bit high than competitors (see Exhibition 1). With the decline EPS from £60 in 1999 to £30 in 2000 and worldwide economic slowdown
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YOUR NAME:_______________________________ YOUR TAs NAME:___________________________ YOUR DISCUSSION #_____________ THE GEORGE WASHINGTON UNIVERSITY Department of Economics Economics 011 Section 14 Prof. Steve Suranovic Fall 2012 Problem Set #2 – Answers Answer all of the following questions from the book and those below. HW #2 is due in class on Wednesday Feb 22nd . A. Questions from Text and Readings R&T Chapter 2-5 (online)‚ Chapter 2.4 Review and Practice (in printed textbook);
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Introduction: Ovania Chemical Corporation is a specialty chemicals producer. Its core product is polyethylene terephthalate (PET) thermoplastic resins‚ which are used mainly to make containers and packages for bottled water‚ soft drinks‚ foods‚ and pharmaceuticals. Their main plant is located in Steubenville‚ Ohio. Though smaller than other chemical producers that produces globally‚ it has competed successfully in its niche of the US specialty chemical business. Recently advances in technology have
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ReportTitle: Observations of Chemical ChangesDate: 9/9/13Name: Purpose: The purpose of this experiment is for the student to gain knowledge and experience regarding how avariety of chemicals react to one another. In addition‚ the student should also gain a betterunderstanding of the household chemicals that they use in their day to day lives.Procedure:Observe the chemical changes that occur by mixing a list of chemicals (provided in the lab manual).Add 2 drops of the first chemical into a well in the 96
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Introduction The following report shows that the proposal of the modernisation project should obtain funding from the corporate headquarters of Victoria Chemicals. The project has an initial outlay of GBP12 million to renovate and rationalise the polypropylene production line at Merseyside plant. This is done in order to make up for deferred maintenance and exploit opportunities to achieve increased efficiency. This report will look at the following four main areas of concern in order
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"What can we do about children’s poverty and inequality‚ and what can be done better?" The aim of this essay is to eloquently discuss what we can do about children’s poverty and inequality and ways in which we can improve some factors. The essay will closely analyze few of the factors to give us a better understanding of ways to improve these factors. Some of these factors are as followed; Impact of social grants‚ Early childhood development(ECD)‚ National Health Insurance and the re-engineering
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Observation of Chemical Change Course: General College Chemistry Purpose This experiment examines the reactions of common chemical s contained in consumer products. The purpose is to observe the macroscopic changes that these chemicals undergo. The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. Procedure We do not have the ability to see with a naked eye individual atoms and molecules reacting during chemical changes
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