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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Case #22 Victoria Chemicals Synopsis and Objectives go/no-go decision 1. The identification of relevant cash flows; in particular‚ the treatment of: a. sunk costs b. cash flows obtained by cannibalizing another activity within the firm c. exploitation of excess transportation capacity d. corporate overhead allocations e. cash flows of unrelated projects f. inflation. 2. The critical assessment of a capital-investment evaluation system
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Chemical Pesticides and the Damages they Cause Aaron Walker Devry University Chemical Pesticide and the Damages they Cause causes The articles and information that I grasped from the internet consisted of chemical pesticides and how they are affecting the animals‚ food‚ and humanity in today’s time. There are many ways to eating healthy‚ but at the same time we must be observant to the types of food that we put in our system. We have leaner products‚ vegetables
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Chemical Bonding Chemical compounds are formed by the joining of two or more atoms. A stable compound occurs when the total energy of the combination has lower energy than the separated atoms. The bound state implies a net attractive force between the atoms ... a chemical bond. The two extreme cases of chemical bonds are: Covalent Bonds Covalent chemical bonds involve the sharing of a pair of valence electrons by two atoms‚ in contrast to the transfer of electrons in ionic bonds. Such bonds lead
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HARPER CHEMICAL COMPANY The Harper Chemical Company (HCC) was a medium sized producer of industrial chemicals‚ which sold its products primarily to customers in the paper industries and the paint industries. In 1980‚ HCC diversified into the production of a mineral called Dominite. By acquiring the Dominite activities‚ HCC hoped it would yield at least 15% return on investment after taxes. In early 1980‚ the HCC board of directors authorised the construction of a processing plant having a 40 000
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Chemical reactions involve the making and breaking of bonds. It is essential that we know what bonds are before we can understand any chemical reaction. To understand bonds‚ we will first describe several of their properties. The bond strength tells us how hard it is to break a bond. Bond lengths give us valuable structural information about the positions of the atomic nuclei. Bond dipoles inform us about the electron distribution around the two bonded atoms. From bond dipoles we may derive electronegativity
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Element: Simplest form of matter to have unique chemical properties. Atom: The smallest particles with unique chemical identities. Nucleus: Center of an atom (composed of protons and neutrons). Proton: Have a single positive charge (+1). Neutron: Have no charge. Electron: Tiny particles with a single negative charge and very low mass (-1)/determines chemical bonding properties of an atom. Atomic Number: Number of protons in the nucleus. Atomic Mass: Approximate number of protons and neutrons
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CHEMICAL WEATHERING Chemical weathering is a process of alteration of rocks of the Earth’s crust. is a chemical decomposition process. is brought out by atmospheric gases and moisture. End product has a different chemical composition and poorer physical constitution. The process: Chemical change in the nature of rock takes place in the presence of moisture containing many active gases such as CO2‚ N2‚ H2‚ and O2. Rocks are made up of minerals. All the minerals in a rock are not in
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What is Nova Chemical’s strategy? How do the various divisions relate to the firm’s overall strategy? Industry analysts are expecting high growth rates for specialty chemicals of 10-15%. As a result‚ Nova Chemical has a 5 year strategy that focuses on development of the company’s two specialty chemicals divisions: the Laboratory Products Division (LPD) and‚ more substantially‚ the Environmental Products Division (EPD). Investment will focus on the company’s EPD division through expansion
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enable them to: Solve problems in almost any domain Support their decisions Reduce guesswork 1.1.1 Learning objectives By the end of this unit‚ you should be able to: Describe the scope of Statistics Distinguish between statistical data and non-statistical data Sikkim Manipal University Page No. 1 Statistics for Management Unit 1 Recognise the functions of Statistics Recognise the limitations of Statistics Recall the computer programs
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