The Pit and the Pendulum There are some stories‚ where the objects that are described or portrayed play a more important part of the story than what we believed. In The Pit and the Pendulum‚ a short story written by Edgar Allan Poe there is certain symbolism that adds meaning to the story. The narrator is telling the story from a dungeon in Toledo‚ Spain as a prisoner during the Spanish Inquisition. In the story‚ there are certain objects that have important symbolism for the drama‚ since they lead
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Determining the Properties of Different Acids and Bases Yamin Liu November 16th‚ 2017 Chemistry 1021 Section: 427 Benton Smith Discussion of Results The goals of this experiment were to find the identities of four unknown compounds and to first determine the pH. We then were required to run a series of anion and cation tests to determine the composition of the unknown solutions. To get more knowledge about these solutions we ran a series of dilutions to see if
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INTRODUCTION There are many reasons for knowing the identity of microorganisms. The reasons range from the knowing the causative agent of a disease to knowing the correct microorganism in order to make antibiotics. This study was done by applying the following methods; OF Glucose‚ Indole Production‚ and Malonate Utilization test for the identification of an unknown bacterium. The methods will assist in determining the unknown bacterium found in a 55 year old male that was passing blood and mucous
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the mass of the water and the initial temperature. 8. Peanut or walnut: Record the weight of the peanut or walnut. a. The peanut or walnut is best held in place by the wire test tube holder‚ but a long needle will also work. Food items like peanuts may take a while to stay lit and you may have to move them around in a flame to get them burning. When well-lit
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Experiment 9 Empirical Formula of Zinc Iodide Objectives Upon completion of this experiment‚ students should have learned: 1. The law of conservation of mass. 2. How to calculate an empirical formula. 3. The concept of limiting reagents. Introduction Synthesis and the determination of empirical formulas are two extremely important parts of chemistry. In this experiment‚ you will synthesize zinc iodide and determine its empirical formula. The molecular formula gives the actual
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Flammable and Combustible Liquids (Examples: alcohols‚ esters‚ ethers‚ ketones) Vapors from flammable and combustible liquids can mix with air and burn if they contact an ignition source. Possible ignition sources include hot electrical wires‚ hot surfaces‚ open flames‚ hot particles and embers‚ and sparks. The lowest temperature at which a liquid releases enough vapor to start burning is called the flash point. The flash point is what distinguishes a flammable liquid from a combustible liquid.
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contained electrically charged barbed wire‚ machine
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Purpose The purpose of this experiment is to observe a redox reaction and understand what it means. We will observe the new bonds formed and the importance of the electron in the formation of these new bonds. Materials Boileezers (boiling chips) Desiccant 0.17M acetic acid (acidified water) Solution of Sodium thiosulfate Granular zinc Iodine crystals Zinc ion and iodine-iodide-triiodide ion in water Solid zinc iodide Mineral oil Silver nitrate Magnesium turnings 3M Hydrochloric acid (HCl) solution
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polyurethane foam. Their fur on the outside is made of things like polyacrylonitrile and their scales are made of nylon. If you like to play with robots. The little robot may be made of polystyrene. Polyethylene and polysioprene may can made for their wires. Plus‚ epoxy resins are often made for circuit boards inside of the robbits. Some kids may like use the fence with this oh-so discreetperiscope that is made out of polyethylene to see something fun. Along with neato pinwheel‚ do you know what made
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model types of the M16; M16‚ M16A1‚ M16A2‚ and the M16A3. The difference of these guns are very minimal‚ with the big differences being only cosmetic. Many different accessories can be mounted to a M16‚ like a grenade launcher‚ a shotgun attachment‚ flame thrower and many more.
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