emit heat.” Phosphorus is a non-metallic element‚ so when it burn in oxygen‚ acidic oxides will form. When a piece of phosphorus on an iron burning spoon is ignited by touching it with a hot wire‚ and it is put into a gas jar containing oxygen‚ it burns in the oxygen with an exceedingly brilliant white flame‚ producing a white cloud of phosphorus pentoxide‚ P2O5‚ which settles in flocks on the inside of the dry jar. The equation is: P4 + 5 O2 ==> 2 P2O5. For lighting phosphorus matches‚ another
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held together by Van der Waals forces. Under high pressure‚ nanotubes can merge together‚ trading some sp2 bonds for sp3 bonds‚ giving great possibility for producing strong‚ unlimited-length wires through high-pressure nanotube linking Introduction What is a CARBON NANOTUBE? Carbon nanotubes are wires of pure carbon with nanometer diameters and lengths of many microns. A single-walled carbon nanotube (SWNT) may be thought of as a single atomic layer thick sheet of graphite (called graphene)
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. REVISION QUESTIONS Corrosion OP - Monday Is the electrical circuit in a corrosion reaction AC or DC? 1 Does corrosion occur at the cathode or at the anode? 2 Name the three factors needed for corrosion to occur. 3 What is meant by the term electrolyte? 4 What is corrosion? 5 In the corrosion circuit do electrons flow from anode to cathode? 6 Which gas is released at the cathode when the electrolyte is water? 7 Which is the more noble metal‚ steel or Aluminium? 8 Which
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Microbial analysis of soil‚ of top layer from selected sites of Area near Dahisar River Saika N. Esani University of Mumbai (Email – saikae@ymail.com) Abstract: soil samples were collected fortnightly from area near Dahisar River‚ A river in suburb of Mumbai. laboratory analysis started from July 2010 to September 2010. Total bacterial and fungal count were estimated by standard spread plate isolation. Isolated bacteria were subject to colony characterization and were estimated by their
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determine the percent of water in a hydrate sample. e) To determine the formula of a hydrated compound. MATERIALS AND EQUIPMENT- 1) Balance 2) Clay triangle 3) Crucible 4) Crucible tongs 5) Burner 6) Iron ring 7) Ring stand 8) Scoopula 9) Wire gauze 10)
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Sentence Coherence Coherence means the quality of sticking together. a sentence has coherence when the sentence elements are so arranged as to show their relationship. Clarity in the sentence depends largely on proper word order A. Achieving coherence through proper placement of modifiers A modifier is a word‚ phrase‚ or clause that describes‚ strengthens‚ or clarifies another word (or group of words) in a sentence. When a modifier is placed in its proper position in a sentence‚ a sense
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| Workmanship * Mise –en-place was presented clean and based on guidelines * Recipe matches the ingredients used for two portions * Preparation method is executed properly. * If alcohol was used for flaming‚ participant could control the flames * The dish was efficiently plated and decorated | 25 | | | Presentation /Innovation * Check on ingredient combination and harmony in color * Check on portion size based on ala carte service * Attractiveness of the decoration * Dish was
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TOPIC: Open Fire Burning. How Does It Affect Us? ABSTRACT Open burning is the disposal of any waste material in an open‚ outside flame and can be a substantial wellspring of air contamination. Smoke from open burning contains fine particles‚ gasses and other harmful results of burning that can be breathed in profoundly into the lungs. Exploratory studies have interfaced presentation to fine particles to trouble in breathing‚ irritated asthma‚ expanded crisis room visits and healing centre affirmations
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creating an emotional appeal for the reader. For example‚ Caroll depicts a young boy living in Ghana‚ and the process he goes through to make a living off our old technological garbage. “With the flame retardant burned away-a process that has released a bouquet of carcinogens and other toxics- the wire may fetch a dollar from the scrap-metal buyer (79). The picture Caroll paints of a young boy surrounded by toxic fumes while burring “e-waste‚” to only scrape by with a dollar creates a very unsettling
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1) Heading a. Analysis of Alum b. September 8‚2010 – September 10‚2010 c. Asad Mehmood d. Lab Partner: Alec Drey‚ Sarah Schrader‚ Seth Kerrey 2) Purpose e. Research Problem: Is what we have alum? In this lab‚ we will be analyzing alum by doing three different tests. The first will be to find the melting point‚ the second to find the amount of water in alum‚ and the third is to find the percent sulfate. We expect the values to be close to the actual.
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