Naming Chemical Formulas Chemical Nomenclature There are over 19 million known chemical substances. Without some type of system‚ naming these substances would be hopelessly complicated. The system used in naming substances is called chemical nomenclature. There are two major divisions to the International Union of Pure and Applied Chemistry (IUPAC) system: inorganic nomenclature organic nomenclature Organic compounds contain carbon‚ usually in combination with hydrogen‚ oxygen‚ nitrogen
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Chemical equations are the symbolic representations of chemical reactions that are made up of reactants and products. It is made up of the chemical formulas of the reactants and the chemical formula of the products. The reactants are the substances or chemicals that takes part in during a reaction and the products are the chemicals are the substances that result from the chemical reaction. Reactants are on the left side of the chemical equation and the products are on the right side of the chemical
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90696 906960 For Supervisor’s use only 3 Level 3 Chemistry‚ 2008 90696 Describe oxidation-reduction processes Credits: Three 9.30 am Friday 28 November 2008 Check that the National Student Number (NSN) on your admission slip is the same as the number at the top of this page. You should answer ALL the questions in this booklet. A periodic table is provided on the Resource Sheet L3–CHEMR. If you need more space for any answer‚ use the page(s) provided at the back of this booklet and clearly
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Topic 11a – Group 7‚ the Halogens Revision Notes 1) Trends in physical properties of the elements • At room temperature‚ Cl2 is a pale green gas‚ Br2 is a brown liquid‚ I2 is a blue-black solid. • In Group 7‚ boiling point increases down the group because the molecules have more electrons and‚ therefore‚ stronger van der Waal’s forces which require more energy to overcome them • Electronegativity is the ability of an atom to attract the electrons in a covalent bond • Down
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SECTION 1 INTRODUCTION CHAPTER # 1 HAIDRI BEVERAGES (PVT) Ltd. ISLAMABAD 1.1. INTRODUCTION Haidri Beverages Islamabad is situated on the Kahota Road industrial Triangle Islamabad. It occupies an area of about 8 acres. It is a private factory. This factory manufactures carbonated beverages and pure water and sells it as Pepsi‚ Miranda‚ 7Up‚ Mountain Dew and Aquafina. To sell these beverages and water‚ factory has got the license from Pepsi Co International (PCI) USA. So that
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Writing Half Reaction and Net Ionic Equation Going back to our first concept or topic‚ we’ve learn how to identify the Oxidizing and Reducing agent and the Oxidation as well as the Reduction. In this part of the Redox reaction or in this step‚ it is very important that you already know the Oxidizing and Reducing agent for us to find the half reaction. In this step or part‚ we will also learn how to balance using the addition of electrons in both sides if necessary. After this step we can now write
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Ludwig-Maximilians-Universita¨t Mu¨nchen‚ Munich‚ Germany . Introduction Under anaerobic conditions‚ in the dark and in the absence of electron acceptors‚ organic compounds are catabolized by strictly anaerobic or facultatively anaerobic bacteria by internally balanced oxidation–reduction reactions‚ a process called fermentation. In fermentation‚ the organic compound serves as both electron donor and acceptor‚ and adenosine triphosphate is synthesized by substrate level phosphorylation. . Types of Fermentations . Distribution
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Water Pollution Control On Wednesday‚ July 10th‚ 2013‚ at approximately 12:47pm‚ Mr. Tom Anderson led our group on a tour through the City of Akron’s Water Pollution Control plant. The weather was very humid‚ with a temperature of 84 degrees F‚ but felt like 97 degrees F. On this tour we learned that the purpose of this plant (which was built in 1928) is to take all of the used water and waste from the municipal sewage lines from Akron and the surrounding suburbs and run it through a cleaning
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B. Chromic Acid Test/ Jones Oxidation This test is based on the reduction of chromium(IV)‚ which is orange‚ to chromium(III)‚ which is green‚ when an alcohol is oxidized by the reagent. A change in color of the reagent from orange to green represents a positive test. Primary alcohols are oxidized by the reagent to carboxylic aicds; secondary alcohols are oxidized to ketones. Tertiary alcohols are not oxidized at all by the reagent. Hence‚ this reaction can be used to distinguish tertiary alcohols
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The hydride reacts with water to give hydrogen gas. The element X could be? A. K B. Ca C. N D. O 4. Which metal reacts with concentrated NaOH to produce hydrogen gas? A. Al B. Cu C. Fe D. MG 5. In which pair does the named element have the same oxidation number? A. Sulfur in H2S2O7 and H2SO4 B. Mercury in Hg2+ and Hg22+ C. Oxygen in Na2O2 and H2O D. Cobalt in Co(NH3)62+ and Co(NO3)2
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