Non-polar covalent bond Electronegativity difference between 0.3-1.7 = Polar covalent bond Electronegativity difference greater than 1.7 = Ionic bond 3. What type of bonding would be expected between the following atoms? a) Li and F = ionic b) Cu and S = polar-covalent c) I and Br = polar-covalent Translation: Non-polar covalent bond – the electron pairs that make up the bond are “hanging out” right in the middle of the two atoms Polar covalent bond – the electron pairs that make
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of Experiment: Observation of Chemical Changes Purpose: To examine the reaction of common chemicals from household consumer products‚ and the changes they undergo. Procedure: After combining the chemicals listed below in Data Table 1‚ I observed the mixture against white and dark backgrounds by slipping white and black paper underneath the well plate. For every reaction‚ I wrote down the chemical combination‚ the well number‚ and my observations of the chemical reactions against the white and
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Significant chemical waste is generated from the labs on campus: 1. To find out how are these chemicals disposed. 2. To suggest what is the optimum way of disposing them. 3. Identification of the risks involved. Contents 1. PROJECT OBJECTIVES……………………………………………1 4. INTRODUCTION…………………………………..........................5 4.1 Waste…………………………….……………..........................5 4.2 Chemical Waste……………………………………………….6 4.3 Hazardous Chemical Wastes…………………………….7 4.4 Non-Hazardous Chemical Wastes………………
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WGP CHEMICAL COMPANY CASE STUDY 1. What is the total distribution cost for W-G-P Chemical Company? What is the cost per pound‚ cubic foot‚ case‚ line‚ and order? How can these measures contribute to the distribution review process? In order to calculate the total distribution cost‚ carrying cost must be calculated. Inventory carrying cost rate was given as 18%. The formula is Annual carrying cost=average inventory level * carrying cost rate Average inventory was given in table 4 as $90 million
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Physical and Chemical Properties Chem 107 6-4-2013 A pure substance or chemical substance is a material that is homogeneous. It has consistent properties throughout the sample.” Pure substances can be described by both physical and chemical properties”. Physical properties can include‚ color‚ odor‚ melting point‚ boiling point‚ and solubility in various solvents‚ etc. The observation of these physical properties does not involve any chemical change in the substance‚ it is still the same
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Chemistry Laboratory Report Classification of Chemical Substances Student: Saule Sadykova Lab Partner #1: Temirlan Atambaev Lab Partner #2: Almas Ospanbekov Instructor: Eugene Douglass Nazarbayev University Purpose The aim of this experiment is to investigate the properties of several substances with the purpose of determining whether they are molecular‚ ionic‚ macromolecular or metallic. Introduction Chemical substances could be named ionic‚ molecular or metallic substance‚ based
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Observation of Chemical Reactions Objective: This experiment is meant to show how certain chemicals react with each other and can be identified by these reactions Procedure: Several different chemical mixtures were poured into the well plate and observed. These included sodium bicarbonate and hydrochloric acid‚ bromothymol blue and hydrochloric acid‚ ammonia and bromothymol blue‚ hydrochloric acid and blue dye‚ blue dye and sodium hypochlorite‚ potassium iodide and lead nitrate‚ sodium hydroxide
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1) Please locate the SDS for the chemical 4-Butylbiphenyl by Sigma Aldrich. Provide the website link for this SDS and answer the following questions: (5 points: 1 point each for a-e) a) Website: http://www.sigmaaldrich.com/MSDS/MSDS/DisplayMSDSPage.do?country=US&language=en&productNumber=545163&brand=ALDRICH&PageToGoToURL=http%3A%2F%2Fwww.sigmaaldrich.com%2Fcatalog%2Fproduct%2Faldrich%2F545163%3Flang%3Den b) In what section do you find the classification of the substance or mixture? Is
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Total continuity equation is the principle of the conservation of mass when applied to a dynamic system. The unit of this equation is mass per time. In overall balance‚ only one TCE can be written. CCE is based on component balance. Unlike mass‚ chemical components are not conserved. If reactions occur on a system‚ the number of moles of an individual component will increase if it is a product and will decrease if it is a reactant. The unit of CCE is moles of component per unit time. While EE‚ the
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BIOLOGY 22 MODULE 1 – Chemical Basis of Life v2.0 * Levels of Organization – biological functions are ultimately based on the properties of atoms and molecules * Subatomic particles – neutrons‚ electrons‚ protons * Atoms * Compounds * Complexes of compounds * Organelles – bodies within cells that perform specific functions * Cell * Specific combination of organelles * Can metabolize and reproduce * Least elaborate living structure * Significance
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