Covalent Compound: Cocaine Cocaine‚ also known as coke‚ is a covalent compound‚ which are molecules that consist of groups of atoms held together by covalent or coordinate bonds. In the United States cocaine is an illegal drug because of the harm it does to a human’s body. It has been used for many years for many different reasons by many different people. Cocaine and it’s leaves‚ which are found on the plant of the Erythroxylen coca (cocaine.org)‚ originated by the South American Indians who have
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Organic Chemistry/Biochemistry 1: Compounds Important to Life • Biologists classify compounds into organic compounds and inorganic compounds. Organic Compound: a compound that is derived from living things and contains carbon Inorganic Compound: a compound generally derived nonliving things • Water Water is an inorganic molecule with unique properties that make it one of the most important compounds for living things. In the water molecule (H2O)‚ the hydrogen and oxygen atoms bond
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Name Class Date [pic] Compound Inequalities 3-6 Reteaching A compound inequality with the word or means one or both inequalities must be true. The graph of the compound inequality a < –4 or a ≥ 3 is shown below. [pic] A compound inequality with the word and means both inequalities must be true. The graph of the compound inequality b ≤ 4 and b > –1 is shown below. [pic] To solve a compound inequality‚ solve the simple inequalities from which it is made. [pic] Problem
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Nomenclature for Ionic Compounds Ionic compounds consist of cations (positive ions) and anions (negative ions). The nomenclature‚ or naming‚ of ionic compounds is based on the names of the component ions. Here are the principal naming conventions for ionic compounds‚ along with examples to show how they are used: Roman NumeralsA Roman numeral in parentheses‚ followed by the name of the element‚ is used for elements that can form more than one positive ion. This is usually seen with metals. You
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BIBLIOGRAPHY Barber‚ C. 2000. The English Language. A Historical Introduction. Cambridge: Cambridge University Press. Baugh‚ A. and T. Cable. 2002. A History of the English Language‚ 5th edition. London: Routledge. Bejan‚ N. and Elena Asandei. 1981. Contemporary English Language: Syntax and Lexicology. Galaţi: Editura Universităţii din Galaţi. Brook‚ G. L. 1981. Words in Everyday Life. London: The Macmillan Press. Cannon‚ G. 1987. Historical Change and English
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Compound Light Microscope The familiar compound light microscope is a series of lenses (hence "compound") that focus visible light in such a way as to produce a magnified image. A single lens‚ often called a magnifying glass‚ cannot generally magnify images as much as a series of lenses although Antony van Leeuwenhoek‚ the first microbiologist‚ used a simple‚ albeit exquisitely crafted‚ lens to discover single-celled "animalcules‚" as he called them. Advantages: Basic compound light microscopes
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Lab 6: Organic Compound Analysis Isabella O’Toole CHY 116 Friday 1:15-4:00 Lab Conducted on 4-12-13 and 4-19-13 4-26-13 This lab was conducted in order to determine the chemical composition of an unknown organic acid. A known mass of acid was dissolved into 30mL of either water or methanol (depending on solubility) and titrated with standardized sodium hydroxide. Data from this allowed the molar
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3/5/2011 EXPERIMENT EXPERIMENT 8 OBJECTIVES CONCEPTS REAGENTS PROCEDURE RESULTS DISCUSSION IR ANALYSIS 8 Objectives to differentiate various types of oxygen-bearing organic compounds to device a scheme to distinguish each functional group Analysis of Oxygen-bearing Organic Compounds alanx3@yahoo.com OBJECTIVES CONCEPTS REAGENTS PROCEDURE RESULTS DISCUSSION IR ANALYSIS to characterize an unknown sample through parallel chemical tests ARMSALCEDO ARMSALCEDO alanx3@yahoo
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C H A P T E R I The ways in which new words are formed‚ and the factors which govern their acceptance into the language‚ are generally taken very much for granted by the average speaker. To understand a word‚ it is not necessary to know how it is constructed‚ whether it is simple or complex‚ that is‚ whether or not it can be broken down into two or more constituents. We are able to use a word which is new to us when we find out what object or notion it denotes. Some words‚ of course‚ are more
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Chromatography • • • Separation based on polarity of compounds Two potential phases for a compound to exist in: mobile and stationary Partitioning of compounds between mobile phase and stationary phase occurs: o Compounds that are less polar move more in the mobile phase‚ those that are more polar “stick” more on the stationary phase o These polarity differences cause compounds move at different rates and therefore can be separated 1. Mobile Phase: the phase the moves; can be gas or
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