Reaction Types In this lab we were give 9 different elements and had to determine if they were Single Displacement‚ Double Displacement‚ Synthesis‚ Decomposition and Combustion. A.) Aluminum and Copper (II) Chloride‚ my hypothesis is a Single Displacement. B.) Calcium Carbide and Water‚ my hypothesis is a Double Displacement. C.) Zinc and Hydrochloric Acid‚ my hypothesis is a Single Displacement. D.) Alcohol and Oxygen‚ my hypothesis is a Combustion. E.) Lead (II) Nitrate and Potassium Iodide
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How Breathalyzers Work Busted for driving under the influence? Let’s admit it‚ drinking is indeed fun‚ therefore it is one of the most popular activities across the world. It is even considered a basic need for some people and forms many cultures. After drinking‚ the safest way to get back home is either to take a taxi or to have your designated driver drive you home. Still‚ there are some stubborn ones who insist on driving back home even though they are aware that they had much to drink. That
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Instructions: Answer the questions from the three parts of the unit project below. Do not write the essay in Part III‚ but rather briefly use the terms and concepts (that we discussed in class) listed under “Essay” in your answers to any questions where it is relevant (especially Part III). “The Hot Tub Mystery” by Herbert House Page 1 Part I—The Discovery Cast of Characters • Sam Garrison—Detective • Roma and Clint Underhill—The hot couple • Kavita Dickson and Larry Gonzales—EMT paramedics
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English 111-105 September 2013 The Night I Will Never Forget It was April 24‚ 2010; we all sat in a small waiting room at Baptist Hospital nervously and anxiously waiting for any news. The least bit of movement in the hallway would get our hearts racing and blood pumping. Most of us were still in shock from what had happened the previous night. We were still trying to convince ourselves that it wasn’t her in that car‚ that they had the wrong person. It had just been a birthday party she was
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i. Flammable Materials 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
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Bar restaurant business plan The set-up of a restaurant bar depends on a long list of issues. Everything from the size of the building‚ to the theme‚ and of course the liquor license can affect the success of your bar. In some cases‚ bars are "service only" which mean that customers are unable to order directly‚ but the serving staff places the order for them. Other restaurant bars offer either full or limited bar menus. A lot of bars take part in "Happy Hour" which is generally when they
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Aeroxide® TiO2 P90 (Evonik‚ Germany) was used in all experiments as the photocatalyst. The properties of TiO2 nanoparticles are given in Table 3.1 according to the supplier. The suspensions were prepared by dispersion of the desired amount of TiO2 in deionized water. The suspension was magnetically mixed at the stirrer speed of 500 – 600 rpm. Table 3.1. Characteristic physicochemical data of Aeroxide® TiO2 P90 Properties Unit Primary particle size µm 14 Specific surface area (BET) m2/g 90 ± 20
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6. Results and Discussion 6.1. Mix Design of Cold Recycled Bituminous Mixture Compaction characteristics of untreated bitumen mixes according to Modified Proctor Test is shown in Figure 6. When the RAP content increased‚ it resulted in reduction of MDD and the corresponding increase in OMC. The decreased MDD is obtained due to the weak bond between RAP and the virgin material and also due to less fine material that plugs the voids to produce denser mix. The corresponding increase in OMC is
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Atrazine (1-chloro-3-ethylamino-5-isopropylamino-2‚ 4‚ 6-triazine‚ CAS: 1912-24-9) was purchased from Dr. Ehrenstorfer GmbH (97.7%‚ Germany). Ethyl acetate (99.8%‚ ANPEL Scientific Instrument (Shanghai) Co.‚ Ltd.) was used as solvent for standard solutions. Acetonitrile used as HPLC eluent was purchased from ANPEL Scientific Instrument (Shanghai) Co.‚ Ltd.‚ KH2PO4·12H2O‚ K2HPO4·2H2O‚ dichloromethane and other chemical reagents used in cultivated media were purchased from Sinopharm Chemical Reagent
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Materials and Methods: PLGA (50:50 copolymer compositions; MW 30‚000 Da)‚ berberine chloride hydrate (MW 371.81 Da)‚ poly vinyl alcohol (MW 89‚000 Da) and 15 and 50 mL Corning centrifuge tubes were purchased from Aldrich (St. Louis‚ MO‚ USA). Acetone was purchased from Fischer Scientific Laboratory (Fair Lawn‚ NJ‚ USA). Phosphate buffer pH 7.0 was purchased from EMD Chemicals Inc. (Gibbstown‚ NJ‚ USA). 0.2 micron syringe filters were obtained from Millipore Corporation (Carrigtwohill‚ Ireland). 1
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