An ion is an atom or molecule in which the total number of electrons is not equal to the total number of protons‚ giving it a net positive or negative electrical charge. The name was given by physicist Michael Faraday for the substances that allow a current to pass ("go") between electrodes in a solution‚ when an electric field is applied. It is from Greek ιον‚ meaning "going." The word ion also is responsible for electrical current being symbolized by the letter i in chemistry and physics. An anion
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US 20110313189Al (19) United States (12) Patent Application Publication (10) Pub. No.: US 2011/0313189 A1 Varotto et al. (54) (43) Pub. Date: 1.4-FULLERENE ADDENDS IN PHOTOVOLTAIC CELLS (76) Inventors: (51) Dec. 22‚ 2011 Publication Classi?cation Int- Cl C07C 69/616 (2006.01) Appl. No.: (22) Filed: C07C 25/22 C07C 211/61 (200601) (2006.01) Barbara‚ CA (US); Jang Jo‚ Goleta‚ CA (U S) (21) Allesandro Varotto‚ Santa Barbara‚ CA (US); Fred Wudl‚ Santa
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PERFLUORINATED COMPOUNDS: PERSISTENT‚ PESKY POLLUTANTS PRESENCE IN ARCTIC ENVIRONMENT AND WILDLIFE‚ LEADING TO PRESENCE IN HUMAN BLOOD SERUM J. Horton CHEM 422- Environmental Chemistry 4th of May‚ 2012 1 I N TR O D U CTI O N Perflurorinated compounds (PFCs) are heterogeneous organic compounds that have a partially or fully fluorinated alkyl chain‚ which can range from four to fourteen carbons and can have other functional organic groups attached. PFCs are mostly the products of industrial
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Unit One Continued Biology is Life and the Living Characterstics of living things Must have Complex and Organized structure based on element carbon Flower (complex and organized) Reproduction and show gene controlled by heredity Camel reproduces and heredity is the traits based on the genes of the DNA Instructions on how to create YOU Crystal reproduces but has no Genes and no control Living things show growth and development Egg cell with sperm to embryo to child 23+23 for DNA Energy
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Review 1: The Chemistry and Molecules of Life Please note that this is a general outline of some of the topics we will have discussed and are detailed in chapters 2-5 of your textbook. While this gives you an idea of some of the terms/phrases you are responsible for‚ not all the material we covered is included. You are responsible for everything discussed in class‚ but NOT for material in the book that was not addressed in lecture. Please do NOT assume that if you know the concepts/answers to the
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Bubbles By Olivia Kenyon Table of contents Table of contents 2 Table of figures 3 Background knowledge 4 The film 4 The soap or detergent 4 The shape 5 The colours 7 Different fabrics as wands 9 My investigation 10 Part 1 10 Part 2 12 Other sources 13 Table of figures Figure 1. Soap molecules surrounding a layer of water making the film of a bubble 4 Figure 2. The general structure of a soap molecule 5 Figure 3. A table explaining that the sphere
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THE ITALIAN UNIVERSITIES’ INTERNATIONAL MEDICAL ADMISSIONS TEST (IMAT) TEST SPECIFICATION In partnership with Ministero dell’Istruzione‚ dell’Università e della Ricerca (MIUR) February 2013 Test Specification Test Format The IMAT will have the same structure as the existing Italian test. Candidates are allowed a total of 90 minutes to complete the test. Section 1 General Knowledge and Logical Reasoning (Critical Thinking and Problem Solving) 30 multiple-choice questions. Sections
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8.4 Water 8.4.1 Water is distributed on Earth as a solid‚ liquid and gas y y y Define the terms solute‚ solvent and solution Solution a homogeneous mixture of two or more substances Solute a substance that is dissolved in another substance or the component of a solution present in a lower amount. Solvent a substance which can dissolve another substance or the component of a solution present in a greater amount. Identify the importance of water as a solvent Water is essential as a reactant
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Research Journal Of Chemistry And Environment‚ Vol. 7 (4) Dec. (2003) Res. J. Chem. Environ. Review Paper: Biosorption of Heavy Metals N. Ahalya‚ T.V. Ramachandra*l and RD. Kanamadi2 1. Centre for Ecological Sciences‚ Indian Institute of Science‚ Bangalore 560 012‚ INDIA. 2. Department of Zoology‚ Karnataka University‚ Dharwad‚ INDIA. Abstract: The discharge of heavy metals into aquatic ecosystems has become a matter of concern in India over the last few decades. These
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popular are "OIL RIG" (Oxidation Is Loss‚ Reduction Is Gain) and "LEO" the lion says "GER" (Lose Electrons: Oxidization‚ Gain Electrons: Reduction). For cases where electrons are shared (covalent bonds) between atoms with large differences in electronegativity‚ the electron is assigned to the atom with the largest
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