World War 1 each side was always desperately looking the next way to get ahead.The first deadly chemicals were found in 1914 used by the Germans. These horrific gases had deadly side effects from extreme blistering‚ to intense coughing fits. Theses gases were as effective as a weapon could get‚ but are they humane? People died brutally immense pain because of these gasses. At the end of World War I chemical weapons had changed the face of the war and raise the death count by thousands. In August 1914
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by the term ‘chemical change’. A chemical change is where the Atoms in one or more substances are rearranged to
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Finding the Ratio of Moles of Reactants in a Chemical Reaction Purpose: The goal of the lab is to determine the mole ratio of two reactants in a chemical reaction (AgNO3 and K2CrO4). However‚ the formulas for the products are unknown. Introduction: When determining the molar ratio of a chemical equation‚ usually the formulas of the reactants and the products are known. With that information‚ it is particularly easy to determine the ratio. However‚ since the products and the formulas for
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experiment is to differentiate between a physical change and a chemical change. A physical change includes a change in the material without affecting its composition‚ such as the physical state change. However‚ a chemical change includes the change in the composition of the substance. The change in color‚ formation of a gas or a solid product‚ and the production of energy are the evidences of a chemical reaction‚ thus‚ of a chemical change. Materials Crucible tongs Evaporating dish
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Abby may be labelled a whistle blower among her peers and her supervisor which in turn could lead to negative career aspirations within Ace Fertilizer. What recommendations did you provide? Why? I recommended that Abby disclose the secondary quote to Tom in order to update the original price to Breeland Ltd. Not disclosing this information is unethical as Ace Fertilizer would be over charging one of their customers. This practice could negatively affect the relationship with Breeland Ltd. and
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2013 Palmitos‚ Isabel Experiment # 2 chemical changes I. INTRODUCTION Chemical changes occur when a substance combines with another to form a new substance whether by combination reaction‚ combustion reaction‚ decomposition reaction and etc. These changes can be observed by evolutions of gas‚ appearance or disappearance of a precipitate‚ evolution or absorption of heat or even change in color. This experiment aims to observe the different chemical changes copper undergoes in different conditions
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where number crunching is an end unto itself. However‚ basic financial analysis will always be an important part of our toolkit for making pricing decisions. The document which follows contains the “answers” to these two case study assignments: Ace Manufacturing and Healthy Spring Water. Despite the financial emphasis‚ they are similar to the previous cases insofar as they’re intentionally open-ended and somewhat vague to encourage you to draw out all of the contingencies and factors that need
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A MANIFESTO DELIVERED BY MR.AFFUL CHRISTOPHER ON THE 4TH OF FEBUARY 2013 AT THE SCHOOL ASSEMBLY HALL AS AN ASPIRANT FOR THE POSITION OF COMPOUND PREFECT Mr. Chairman‚ Honorable Headmaster‚ Members of Staff‚ Co-aspirant‚ Out-going Prefect‚ Fellow Student‚ Ladies and Gentlemen. Good day. I am very grateful for being given the chance to read my manifesto to you‚ as an aspirant for the position of compound prefect. I am Afful Christopher‚ a second year art student of this great institution. I am before
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Physical and Chemical Properties Toby Orme-Lab 4 Solubility or Reaction Substance Name Color Odor Effect of Heat Cold H2O Hot H2O Litmus Test Dilute HCl Dilute NaOH Mg Silver N/A N/A Non soluble Bubbles Basic Hot/fizz N/A Cu Copper N/A Purple then turned black Non soluble N/A N/A N/A N/A Zn Silver N/A N/A Non Soluble N/A N/A Vaporized and fizzed N/A MgO White N/A Omits gas Hazy mix Boiled Rapidly Basic Got hot and fizzed Became thick or pasty CuCO3 Green N/A Turned black Hazy Green Became powdery
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Title: Finding the Ratio of Mole of Reactants in a Chemical Reaction Purpose of Lab: To find the coefficients of two chemical reactants that appears in a balanced chemical equation using the continuous variations method. Pre Lab Questions: 1. 2AgNO3(aq) + K2CrO4(aq) → 2KNO3(aq) + Ag2CrO4(s) 2. There is enough to make a valid conclusion because‚ on the graph‚ one can clearly see that the two lines intersect. Thus‚ one can also determine the mole ratio. The mole ratio is approximately
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