Elimination Reactions ________________________________________ As described previously‚ primary alkyl halides generally undergo substitution reactions with simple nucleophiles by an SN2 mechanism. Secondary alkyl halides‚ often react with simple basic nucleophiles to give a mixture of products arising from both substitution and elimination. As with substitution reactions‚ the rate at which elimination reactions proceed can be proportional to both the concentration of the base and the concentration
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Polymerization reaCTIONS polymers are high-molecular-weight compounds‚ fashioned by the aggregation of many smaller molecules called monomers. Ex. plastics that have so changed society and the natural and synthetic fibers used in clothing are polymers. Classification of polymers Homopolymers - consist of repeated long chains or structures of the same monomer unit. Ex. PVC(polyvinyl chloride) Copolymers - polymers that consist of more than one molecule. Trimers - molecules consisting
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My Reaction to Apollo 13 The movie Apollo13 is great but little kind of boring. Tom Hanks is a great artist! He is my idol. One of his great movie is Forrest Gump. By the way‚ The Apollo13 is America’s third moon landing mission. En route‚ an onboard explosion deprives their spacecraft of most of its oxygen supply and electric power‚ forcing NASA’s flight controllers to abort the Moon landing‚ and turning the mission into a struggle to get the three men home safely. I thought Jim’s wife was his
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SAMPANA‚ Claudine P. July 16‚ 2013 BSBA MA 4-1 San Miguel Corporation (SMC) Company Profile San Miguel Corporation (SMC) is a food‚ beverage and packaging company established in 1890 initially as a single-product brewery. The Company ’s extensive product portfolio includes beer‚ hard liquor‚ carbonated and non-carbonated non-alcoholic beverages‚ processed and packaged food products‚ meat‚ poultry‚ dairy products and a number of packaging products. SMC ’s flagship product‚ San Miguel
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ENGINEERING Reaction Engineering CGC035 / CGC052 Problem Sheet 3 - Fluid-fluid reactions 1. The reaction rate for the heterogeneous reaction A(g) + B(l)→ products is second order according to the expression -rA=kCACB and it is relatively slow compared to mass transfer so it takes place in the bulk of the liquid. Combine the following rate expressions for diffusion through the gas and liquid films‚ -rA=kAga(pA-pAi) and -rA=kAlaCAi-CA‚ with Henry’s law pAi=HACAi and the reaction rate
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Chemical Reactions Chemical Change • reorganization • original substances form new substances with different formulas • may or may not involve a change of state • symbols used to describe chemical reaction are known as a chemical equation • Chemical equations do not have equal signs (=) they have an arrow Chemical Equations • Must follow the Law of Conservation of Matter • atoms can neither be created or destroyed during a chemical reaction • What
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is not uncommon that many students are taught that the colony of New Amsterdam had a short-lived non revolutionary life before the British takeover in 1664‚ but Russell Shorto contradicts that with recently unearthed Dutch records and his book The Island at the Center of the World. This story focuses on the New Netherlands Dutch colony and its influence on the city and state of New York‚ which Shorto states when saying “It is a distinctly European tale‚ but also a vital piece of America’s beginning
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Reactions in Aqueous Solutions: Metathesis Reactions and Net Ionic Equations Introduction: Metathesis or double decomposition reactions are a reaction in which two compounds react to form two new compounds‚ with no changes in oxidation number. The ions of two compounds exchange partners. AX + BY AY + BX This reaction can occur between two inorganic salts when one product is insoluble in water‚ driving the reaction forward. A typical example is as followed and is considered a molecular equation
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Reaction Turbine Nithin Mannil 08d01001 Aim 1. To investigate the Torque/Speed and Power/Speed characteristics of Single Stage Reaction Turbine. 2. To determine the Isentropic Efficiency of a Turbine. 3. To compare the characteristics of a reaction turbine at different values of inlet pressure. 4. To compare the maximum shaft power vs pressure and isentropic efficiency vs pressure. Theory Turbines are machines which develop torque and shaft power as a result of momentum changes in the
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Svetlana Feldman Professor Crowder SFELD5157@HOSTOS.CUNY.EDU March 26‚ 2012 Are We Selfish Or Can We Help? In “The Island of Plenty”‚ Montgomery emphasizes his article on social Darwinism. The United States should not share their resources with other parties to reduce the amount of hunger games going on. Other countries are in this difficult position because they are not capable of reproducing their products. The larger the population becomes‚ the more products are wasted. Once the population can
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