Reactions of Carbonyls-Aldehyde/Ketone Analysis: Introduction: The carbonyl group is a rich source of many important reactions in organic chemistry‚ with two fundamental properties that are primarily responsible for its diverse chemistry. The first is the polarization of the. Carbon-oxygen pi bond‚ owing to the relatively high electro negativity. The second property of a carbonyl function is to increase the acidity of the alpha-hydrogen atoms‚ which are the hydrogen’s
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• Understand and observe the concept of Heat Transfer‚ by measuring the temperature distribution for steady state conduction of energy through a specific efficient unit. • Understand the Fourier Law of heat conduction and the usage of its equation in determining the rate of heat flow via solid materials. II. Theory : The Fourier Rate Equation: When a plane section of ∆x and a constant area A maintains a temperature difference ∆T‚ then the heat transfer rate per unit
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Class 1 Metallic bonding: Found in metals and alloys‚ 1‚ 2‚ or 3 valence electrons that are not bound to any particular atom in the solid. They drift throughout the entire metal. This results in a sea of electrons. These free electrons result in good electrical and heat conductivity. Coordination number is 8 or 12 (number of nearest neighbors). Ionic Bonding Found in compounds that are composed of both metallic and nonmetallic elements. Metallic element gives up valence electrons to the
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My Birthstone: Aquamarine There are twelve months in the calendar and for each there is a birthstone. A birthstone is a gemstone that symbolizes a person’s month of birth. Today‚ many believe that there could be a connection between the twelve stones and the twelve signs of the zodiac. What is really interesting is the fact that this believe goes back in time to the first century. According to GemologyOnline.com‚ the connection between the stones and the zodiac signs go back in time to
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(a)Ferromagnetic materials: Ferromagnetic materials have a large‚ positive susceptibility to an external magnetic field. They exhibit a strong attraction to magnetic fields and are able to retain their magnetic properties after the external field has been removed. Ferromagnetic materials have some unpaired electrons so their atoms have a net magnetic moment. They get their strong magnetic properties due to the presence of magnetic domains. In these domains‚ large numbers of atom’s moments (1012
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YNGAR_MAR06- grade 2 Title: What you Need to Know About Garcinia Cambogia? Meta Description: In these days‚ people around the world have become conscious about their health. Weight Loss has become a huge inclination among individuals all over the world. Very often whenever the topic of Weight Loss arises‚ some products like Aci berry‚ Green tea and the like’s rouses huge demand. Of late researchers and various studies have added a product‚ which is known to many as Tamarind! Garcinia Cambogia extract
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The Presence of Uranium in Excess in Bathinda Waters can be one of the Reasons of High Cancer Deaths in the District (Prof. Surinder Singh)* Bathinda district‚ an important cotton growing belt of the state is in light since the last few years due to the higher mortality rate in the area. Giana‚ Malkana and Jajjal villages of Talwandi Sabo‚ Bathinda district are the worst effected areas. Various Government and Non Government agencies such as
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Superfund Program Peggy Toler E.Hansen/EVS1001-31 March 31‚ 2011 Peggy Toler 2 Superfund Program I did not know what a Superfund program was until I looked it up and then I found out that it is an act that is the cornerstone legislation that provides the mechanism and funding for the cleanup of potentially dangerous hazardous-waste sites and the protection of ground water and human health. When you live near a superfund site‚ you and your family are at risk of developing a disease
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Engineering Materials Msc. Shaymaa Mahmood Introduction to Eng. Materials : Since the earliest days of the evolution of mankind ‚ the main distinguishing features between human begins and other mammals has been the ability to use and develop materials to satisfy our human requirements. Nowadays we use many types of materials‚ fashioned in many different ways‚ to satisfy our requirements for housing‚ heating‚ furniture‚ clothes‚ transportation‚ entertainment‚ medical care‚ defense and all the
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like the smell of smog or the almost-not-smell of tulips in the spring‚ nature tidily plotted in little squares with a fountain in the centre; museum smell‚ art also tidily plotted with a guidebook; or the smell of work‚ glue factories maybe‚ chromium-plated offices; smell of subways crowded at rush hours. Where I come from‚ people carry woods in their minds‚ acres of pine woods; blueberry patches in the burned-out bush; wooden farmhouses‚ old‚ in need of paint‚ with yards where hens and
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