Assignments in Science Class X (Term II) 4 Carbon and its Compounds IMPORTANT NOTES 9. Unsaturated organic compounds : Organic compounds in which a double or a triple bond exists between two carbon atoms in a carbon chain‚ are called unsaturated organic compounds. 10. Hydrocarbons : Organic compounds which contain only carbon and hydrogen atoms are called hydrocarbons. 11. Straight chain hydrocarbons : Hydrocarbons‚ in which all the carbon atoms are linked to one another in a straight chain
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ANALYTICAL AND ORGANIC CHEMISTRY LECTURER’S NAME : DR.RAPIDAH OTHMAN COD SUBJECT : NKB 10103 NAME : NUR NADIRAH BINTI BAHARUDEAN ID NUMBER : 55220114255 CHAPTER : ORGANIC CHEMISTRY CONTENTS 1‚4-BENZENEDICARBOXYLIC ACID Introduction The organic compound’s group that I’ve chosen in this assignment is 1‚4-benzenedicarboxylic acid. 1‚4-benzenedicarboxylic acid and also called as Terephthalic acid containing the carboxyl group and benzene group. Sometimes it simply referred to as a acid group
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The object of ball bearings (and roller bearings) is the substitution of pure rolling motion for plain sliding friction. <br> <br>Ball Bearings rely on the rolling motion of hardened steel balls to absorb loads. This rolling motion produces far less friction than the sliding motion. These steel balls are held in circular rows between an outer and inner ring‚ which have raceways‚ or slots‚ grooved into them to guide the balls. Ball bearings are available in both filling-slot and no filling-slot types
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Military bearing is important hdnsnnsnnsnns sksnksnnsnnsnsnsnns sksnksnnsnnsnsnsnns sksnksnnsnnsnsnsnns dksnsnnsnnsdThe USG routinely intercepts and monitors communications on this IS for purposes including‚ but not limited to‚ penetration testing‚ COMSEC monitoring‚ network operations and defense‚ personnel misconduct (PM)‚ law enforcement (LE)‚ and counterintelligence (CI) investigations. At any time‚ the USG may inspect and seize data stored on this IS. Communications using‚ or data stored on
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From the thousand yard stare to a well kept hair cut‚ military bearing is prevalent in every facet of military life‚ though military bearing is much deeper than just appearances; it is the cornerstone of any military career. Military bearing encompasses every facet of life in the military and can be applied to any situation. Military bearing itself is gleaned from several places such as‚ the articles of the UCMJ‚ The eleven general orders of a sentry‚ as well as our own Sailors Creed. From these
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Observations: Part I: Reaction between iron and oxygen Appearance of steel wool after 20 minutes From (relatively) shiny metal strips to not-so-shiny strips that are stained with dark‚ reddish-brown stuff. Part II: Decomposition of hydrogen peroxide Appearance of potato and hydrogen peroxide combination: Lots of white‚ foamy bubbles around the potato slices. Day 2 Observations: Part III: Reaction between zinc and acetic acid Appearance of penny in vinegar after
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Analysis of the Elements present in Organic Compounds Lab#1 [pic] Name: Mark Morey Date Done: 2nd February‚ 2011 Due Date: 9th February‚ 2011 Title: Analysis of the Elements present in Organic Compounds Aims: To test the presence of Carbon‚ Hydrogen‚ Oxygen‚ Nitrogen and Sulfur in Organic Compounds Introduction: Organic Compounds can be considered as any compound containing carbon atoms covalently bonded with other atoms‚ usually hydrogen. Other atoms may include oxygen‚ nitrogen
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IONIC COMPOUNDS In chemistry‚ an ionic compound is a chemical compound in which ions are held together in a lattice structure by ionic bonds. Usually‚ the positively charged portion consists of metal cations and the negatively charged portion is an anion or polyatomic ion. Ions in ionic compounds are held together by the electrostatic forcesbetween oppositely charged bodies. Ionic compounds have high melting and boiling points‚ and they are hard and very brittle. Ions can be single atoms‚ as the sodium and chlorine in
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In 2009‚ Google has created PiLab to improve people’s operation. PiLab initiated Project Oxygen to research the impact of managers on employees and methods to enhance management. Google’s problem now is how to implement the research to increase efficiency for management. There are three alternatives which are to study senior management and executives‚ providing guidance to team composition and to study the complete life cycle of managers. The criteria used to evaluate each alternative are whether
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Standard Methods for the Examination of Water and Wastewater 5210 BIOCHEMICAL OXYGEN DEMAND (BOD)*#(1) 5220 CHEMICAL OXYGEN DEMAND (COD)*#(2) 5220 A. Introduction Chemical oxygen demand (COD) is defined as the amount of a specified oxidant that reacts with the sample under controlled conditions. The quantity of oxidant consumed is expressed in terms of its oxygen equivalence. Because of its unique chemical properties‚ the dichromate ion (Cr2O72–) is the specified oxidant in Methods
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