INTRODUCTION TO CHEMICAL BONDS CHEMICAL BOND Definition: A chemical bond is defined as a force that acts between two or more atoms to hold them together as a stable molecule. Main types of bond: 1. Ionic or electrovalent bond‚ 2. Covalent bond‚ 3. Coordinate covalent bond Forth type of bond: Metallic bond: The type of bonding which holds the atoms together in metal crystal. Valence electron: The electrons in the outer most energy level in an atom that takes part in chemical bonding
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Chemical bond From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electrostatic force of attraction between opposite charges‚ either between electrons and nuclei‚ or as the result of a dipole attraction. The strength of chemical bonds varies considerably; there are "strong bonds" such as covalent or ionic bonds and "weak bonds"
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Chemical Periodicity ------------------------------------------------- ABSTRACT The experiment chemical periodicity shows the properties and reactions belonging to group IA‚ IIA‚ and IVA. Proper procedures and observations were done to determine the solubility‚ physical state‚ color‚ and appearance of the compounds namely Li2CO3‚ Na2CO3‚ K2CO3‚ CaCO3‚ and BaCO3. The results shows that Li2CO3‚ Na2CO3‚ K2CO3 were soluble in water‚ while MgCO3‚ CaCO3‚and BaCO3 were not soluble. All of these compounds
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Case 2.1 American Idol: A Big Hit for Marketing Research? 1. What steps of the six-step marketing research process are evident in this case? According to Case 2.1. The steps are: a) Problem Definition.- The definition of the problem presented when Marcello & Litzenberger analyze that professionals resistance to pursing marketing research. b) Only Mentioned Development of an Approach to the Problem.- This step occurs when they identify the information that they needed to make
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The hypothesis If a chemical reaction occurs‚ then there will be indicators of a chemical change‚ was supported throughout this experiment. Throughout this experiment there were several reactions that took place‚ and an indicator of such chemical reactions could be seen throughout each one. The first piece of identifiable evidence was present in the first step‚ which was when copper (II) nitrate and sodium hydroxide were combined. When stirred‚ a blue precipitate formed at the bottom of the test
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Kao Corporation MNGT 5650 MANAGEMENT & STARTEGY‚ SPRING 1‚ 2010 Abstract Kao Corporation is a Japanese manufacturing company. This company is Japan’s largest soap and cosmetic company. They have developed from being a minor player to being number two in the Japanese market in less than ten years and are the sixth largest soap and cosmetic company in the world. The company’s success was due not only to its mastery of technologies nor its efficient marketing and information systems‚ but to its
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changes are used to describe matter. A property is a trait of matter‚ when that sample of matter is in a fixed state. There are two different types of properties: physical properties and chemical properties. A change is something that alters the properties of a substance. There are two types of changes: chemical changes and physical changes. A physical property is a property that can be observed without changing the makeup (or composition) of a substance. Some examples of a physical properties
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University of Chicago Booth School of Business Accounting and Financial Analysis I (B30016) Case 1: Acme United Corporation Selected Computations Prof. L. Soffer The journal entry summarizing the 2008 activity in the first table in the tax footnote is: Income tax provision $2‚209‚030 Deferred income tax asset/liability - net $224‚277 Cash or income taxes payable $2‚433‚307 The journal entries summarizing the pretax effect of the charge to AOCI for the pension plan and the related tax effect are:
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Introduction The Teletech Corporation is a “provider of integrated information movement and management”‚ as it defined itself. It had two main business segments: the first one was Telecommunications Services‚ which provided long-distance‚ local‚ and cellular telephone service‚ accounted for 75% of the market value of the firm; the second one was the Products and Systems segment‚ which produced computing and telecommunications equipment‚ accounted for other 25% of the market value of the firm. The
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Tenet Healthcare Corporation Tenet Healthcare Corporation (Tenet) a health care services company runs primarily general hospitals and other ancillary healthcare facilities. They are one of the largest investor-owned hospitals companied in the US. Tenet owned or operated 49 acute care hospitals( to include the infamous Memorial Hospital in the state of New Orleans famed after the horrific events following hurricane Katrina)‚ and 59 outpatient centers in 11 states an 89 outpatient centers serving
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