Darrell M. Bell Mrs. Felicia Curry English IV 1/3/12 Tornadoes are also popularly called twisters or cyclones and are characterized by rapidly rotating columns of air hanging from cumulonimbus clouds. (1) They are generally observed as tube- or funnel-shaped clouds. At ground level they usually leave a path of destruction only about 50 m (170 ft) wide and travel an average of only about 8 to 24 km (5 to 15 mi). Contact with the ground is often of an intermittent nature lasting for a period
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(CH3CO-OCH2CH3) is made up of acetic acid (CH3CO-OH) in which the hydroxy group has been replaced by an ethoxy group (-OCH2CH3) Although esters can be produced by many mechanisms‚ the most commonly used method is called esterification‚ which is a condensation reaction between an alcohol and an acid‚ typically in the presence of a strong acid catalyst‚ such as sulfuric acid. For example‚ ethyl acetate can be produced by reacting ethanol (ethyl alcohol) with acetic acid and isopropyl butyrate by reacting
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Date_________ Laboratory _________ Title FLAT BOTTOM CLOUDS (PART 1) Introduction You have probably heard people say hot air rises‚ after all isnt that why hot air balloons rise Well‚ if this were the case shouldnt we be sun bathing instead of skiing on the mountaintops What happened to all that hot air There must be more to this story. In this laboratory you will be investigating how pressure affects the temperature of air and how this relates to the formation of clouds in the troposphere
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occur during the formation of the polymer. Pre- lab questions 1. Is Nylon 66 a step or chain – growth polymer? Define both types of polymerization in your answer. Nylon 66 is a step-growth polymer Step-growth polymerization‚ also known as condensation polymerization‚ eliminates one small molecule when two monomer units are joined together. Chain-growth polymerization‚ also known as addition polymerization‚ joins monomer units without loss of atoms. (Blackman et al. 2012) 2. Draw the repeat
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4 gulrøtter‚ skrelt‚ skjært i biter 1 mellomstor butternut gresskar‚ skrelt‚ skjært i biter 1 søtpotet‚ skrelt‚ skjært i biter 1 rød paprika‚ skjært i biter 1 rødløk‚ skrelt‚ skjært i båter 4 hvitløksfedd‚ skrelt 5 store røde tomater‚ halvert 2 små røde chilli 1 liter grønnsakskraft salt‚ pepper olivenolje Ha alle grønnsakene i en stor ildfast form‚ hell over 1-2 ss olivenolje og bland med hendene. Kvern godt med salt og pepper over grønnsakene og sett formen i forvarmet ovn. Stek
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Identification and characterization of Pierisin gene in P. napi The strategy was followed to amplify the Pierisin-6 gene was given in the supplementary Fig. 1. The mRNA of pierisin-6 gene was purified from the total RNA of fifth instar larvae of P. napi‚ the conserved region was amplified using gene specific primers (supplementary table-1)‚ cloned into pGEM®-T vector and sequenced. Further‚ 3’ and 5’ untranslated regions of pierisin-6 gene were identified by 3’/5’ RACE-PCR. The amplified cDNA sequence
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indicate acid‚ indicate base and indicate neutral? 14. What is an acid? 15. What is a base? 16. What is a buffer and how do they function? 17. What are the 4 molecules of life? Discuss each in detail. 18. What does organic mean? 19. What are condensation reactions and hydrolysis reactions? 20. Describe the 4 levels of protein structure. 21. Distinguish between saturated and unsaturated fat. Homework - Chapter 4 1. Who was to first person to observe cells? 2. What does the cell theory state
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Energy Efficient Condensing Gas and Oil Fired Boilers Condensing boilers are the most energy efficient central heating boilers on the market today. They can be up to 10-15% more efficient than a modern conventional boiler and up to 30% more efficient than older boilers‚ so the energy saving and the impact on your fuel bills can be significant. They achieve this high level of efficiency by removing the heat from the fuel it is burning and also cooling the products of combustion‚ which are normally
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The water cycle is nature’s way of showing how water moves around. The water cycle is a continuous cycle where water evaporates‚ travels into the air and becomes part of a cloud‚ falls down to earth as precipitation‚ and then evaporates again. This never ending cycle is everywhere. One of the places that it occurs in is the Amazon Rainforest. The Amazon Rainforest is a unique habitat filled with wildlife. With its tropical weather‚ the Amazon has an abundance amount of rain per year. In addition
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cases‚ we are ourselves the determinants of nature‚ since the use we make of natural forces produces the result we have caused. One such recent matter is the use of plastic. The term "plastics" covers a range of synthetic or semi-synthetic organic condensation or polymerization products that can be molded or extruded into objects or films or fibers. They consist of long chains of polymers. Their name is derived from the fact that in their semi-liquid state they are malleable‚ or have the property of
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