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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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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Technological Institute of the Philippines Bachelor of Science in Electronics and Communications Engineering CS 100L2-ICDL / ES12FB2 Assignment # 3 Flores‚ Ian Peter Hanie D. Prof. Mon Arjay Fernandez Malbog Jan. 15 2013 Computer Number System Binary‚ hexadecimal‚ and octal refer to different number systems. The one that we typically use is called decimal. These number systems refer to the number of symbols used to represent numbers. In the decimal system‚ we use ten different symbols:
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The spry meadows are held captive in binding dismal white Until Winter’s final breath meets an end with desolate entice For one frigid grasp elongates all branches with such contrite Shall the sun be revenged‚ for it pertains the snow with vice? Or is there proof that an intolerable moment not at all exists? Let it be that patience is evermore a virtue‚ evermore an imperative embrace Composure dissolves the unforgiving snow to bring warmth‚ the light persists Skies masked with thick swirls
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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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REPUBLIC DAY MESSAGE India’s republic day is the day of pride for every Indian as on this propitious day our constitution came into implementation. On 26th January the rule of law and order started with soul concern for the Indian citizens after freedom from colonial government. A constitution which is the ideal for the whole world to imitate its secular‚ democratic‚ republic and sovereign theme is constituted by our leaders with the spirit of unbigoted development of every section of the society
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Because of transcendentalism‚ our world received a new perspective. Those who have became “free thinkers” and have intellectually questioned the “normal” or the “worlds opinion” have gave us opened gates to new mental worlds. Although that path to those rigorous gates may be challenging and may result in defeat‚ its those courageous individuals who have kept striving to get those doors that have changed the world. Although the path may be dangerous‚ the discovery and entrance of the new world
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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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