Chemicals in medicines Rakesh Mohan Hallen The words medicine’ and ’drug’ are often used in our country to mean the same substances: any substance‚ manufactured artificially‚ which can help recovery from sickness‚ relieve symptoms or modify a natural process in the body. A medicine is often a mixture of several chemical compounds. Even if it has only one active component compound often other substances are used as fillers or binders to give it bulk. Chemistry‚ the science related to chemical substances
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Chemical Bonding Lab Chemical compounds are combinations of atoms held together by chemical bonds. These chemical bonds are of two basic types—ionic and covalent. Ionic bonds result when one or more electrons from one atom or group of atoms is transferred to another atom. Positive and negative ions are created through the transfer. In covalent compounds no electrons are transferred; instead electrons are shared by the bonded atoms. The physical properties of a substance‚ such as melting point
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Technology Management and Innovation (MRC 1113) SEM II 2011/2012 ------------------------------------------------- Individual Assignment ------------------------------------------------- Retort Technology in Malaysian Food Industry: Can it be a Competitive Weapon Lecturer: Assoc. Prof. Dr. Wan Khairuzzaman Wan Ismail Submission Date: May 13‚ 2012 Submitted By: Nazifa Bte Abd. Ghani (MR 111037) International Business School University Technology Malaysia May ‚ 2012
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DASMARIÑAS CITY COLLEGE OF SCIENCE AND COMPUTER STUDIES PHYSICAL SCIENCE DEPARTMENT GENERAL CHEMISTRY I LABORATORY (CHEM210L) S.Y 2013-2014 SCIENTIFIC PAPER CHEMICAL PERIODICITY MARIE JOE A. ALTERADO JUNE 31‚ 2013 CPE32 AUGUST 7‚ 2013 GROUP NO. 1 ENGR. IMELDA C. GALERA ABSTRACT The chemical periodicity was demonstrated by using different samples of Group IA‚ IIA and IVA elements. Each of the samples was placed in a test tubes and the physical state
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Experiment 3: Chemical Equilibrium Purpose The purpose of this experiment was to determine the equilibrium constant for the formation of FeSCN2+. Introduction Chemical equilibrium is the point in a reversible reaction where the concentration of the reactants and that of the products remains constant. This point of equilibrium is referred to as the Kc value‚ which can be obtained using the formula: Kc = [product] [reactant] In this experiment‚ we used a spectrophometer to
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Innovation and Technology 165 8 Innovation and Technology INTRODUCTION 8.1. Since Independence‚ India has endeavoured to bring economic and social change through science and technology. The effort has been both on upgrading the traditional skills to make them relevant and competitive and developing advanced capabilities in frontier areas of science and technology. The visionaries who led the growth of science and technology (S&T) in India were convinced that S&T could play an important
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Abstract Chemical equilibrium occurs when a reversible reaction is happening forward and backward‚ at the same time by the same amount‚ is equal. Two procedures were made. First is the Effect of Concentration on Equilibrium. The solution became orange when it was diluted with ammonium hydroxide and the solution became yellow when water was added to the solution. In the second‚ Effect of Temperature on Equilibrium‚ the solution turned into a light brown gas when it was placed in the refrigerator
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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 bond: bond in which one or more pairs of electrons are shared by two atoms. Ionic bond: bond in which one or more electrons from one atom are removed and attached to
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Technology is a systematic knowledge and action‚ usually of industrial processes but applicable to any recurrent activity. Technology is closely related to science and to engineering. Science deals with humans’ understanding of the real world about them—the inherent properties of space‚ matter‚ energy‚ and their interactions. Engineering is the application of objective knowledge to the creation of plans‚ designs‚ and means for achieving desired objectives. Technology deals with the tools and techniques
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Technology with its rapid growing speed is influencing old ways of doing daily affairs. We don’t need to do much effort to handle different tasks and chores since all of them will be done in a matter of pushing a button. While it is true that technology has brought comfort to our lives‚ nearly all of us can confess that technology by itself has got a lot of disadvantages that in long term can cause a lot of side effects either physically or emotionally. Due to the spread of wide range of webs (Internet)
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