Experiment #17 Classification of Chemical Substances Prepared for: Dr. Robert O’Reilly By: Kudaibergenov Baizak 20.11.2013 Nazarbayev University Introduction While many thousands of substances are known‚ they can be classified into a few simple categories based on type of bonding that exists among the atoms in the substance. Bonds are chemical forces that hold atoms together to form molecules or compounds. These categories are ionic‚ molecular and metallic substances.
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CHEMICAL ATTACK ON SYRIA Over 110‚000 people have died in Syria since the beginning of a years-long conflict in the country. On August the 21st‚ the U.S government says that 1‚429 died through the chemical attacks which marked the sea change in foreign policy towards the Middle Eastern country. The impact of poison gas is horrific and fatal. Those exposed to the nerve agent can die within 15 minutes of exposure. Mr. Obama’s absolutist position against it is backed up by international law and the
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This experiment was performed to demonstrate a cycle of chemical reactions involving copper. This lab will start with copper as a reactant in the first reaction through a series of five chemical forms of aqueous phase reactions and ending to calculate the percentage of recovered solid copper as a product in the last reaction of the experiment. The experiment resulted in a percent recovery from the cycle of copper reactions of an increase to 139%. . Introduction: The purpose of this experiment is
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Data Tables: Part 1: Chemicals Well No. Observations of the Reaction A. NaHCO3 + HCl 1A Bubbles appeared for 5 seconds. Now clear in color‚ no bubbles B. HCl + BTB 2A Turned from clear to yellow C. NH3 + BTB 3A Turned from clear to dark blue D. HCl + blue dye 4A Turned from clear to green E. Blue dye + NaOCl 5A Turned from blue to light blue with the 1 drop of HCl 6A Turned from blue->light blue->yellow->light yellow->clear‚ transparent F. NaOCl + KI 7A Turned from clear to Light yellow
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nose hair trimmer to meet your needs. To guide you make the smartest decision possible‚ we’ve created a nose hair trimmer buying guide ! Everybody are going to have their own take on exactly what the best nose hair trimmer should be like‚ so I was thinking of making this greatest resource of helping men and women out thru objective analysis and detailed reviews of all the so-called top nose hair trimmer available in the market. What Should You Look For In A Best Nose Hair Trimmer Nose hair trimmers
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Nickel is one of the most important elements on the periodic table. It has plenty of history‚ as well as a huge importance to society. Its has unique chemical‚ physical‚ and geological properties. Nickel is used commercially in abundance‚ as it is used anywhere from simple art products such as ceramics to complex structures such as tubing for desalination plants. It is even used in the American five-cent coin‚ the "nickel".<br><br>Nickel was discovered by Axel Fredrik Cronstedt‚ in Sweden‚ during
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Examination of Water and Wastewater 5210 BIOCHEMICAL OXYGEN DEMAND (BOD)*#(1) 5220 CHEMICAL OXYGEN DEMAND (COD)*#(2) 5220 A. Introduction Chemical oxygen demand (COD) is defined as the amount of a specified oxidant that reacts with the sample under controlled conditions. The quantity of oxidant consumed is expressed in terms of its oxygen equivalence. Because of its unique chemical properties‚ the dichromate ion (Cr2O72–) is the specified oxidant in Methods Section 5220B‚ Section
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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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a senior credit representative of Joyce Chemical Company. My task in this case is to look into Eliot Manufacturing and to see if we should continue or terminate our relationship with them. If we were to continue‚ the choices would be to either have them in a program to reduce their accounts payable or to tolerate gradual increases in credit. After doing an analysis on Mr. Pound and the Eliot Manufacturing Company‚ I would recommend that Joyce Chemical Company should terminate their relationship
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ZYCHOL CHEMICAL CORPORATION: ------------------------------------------------- Bob Richard‚ the production manager of Zychol Chemicals‚ in Houston‚ Texas‚ is preparing his quarterly report‚ which is to include a productivity analysis for his department. One of the inputs is production data prepared by Sharoaton Walford‚ his operation analyst. The report which she gave him this morning showed the following; ------------------------------------------------- ZYCHOL CHEMICAL CORPORATION -------------------------------------------------
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