What are the most considerable impacts you make? Considering just how vital water is to life‚ it is safe to say that humans play a very significant role in the water cycle‚ therefore‚ it’s safe to say that human activity also heavily impacts the water cycle too. We often use the resources of our planet wildly and without thinking about the possible repercussions this might have on us and the planet in the future. But using our resourced wildly is the cultural norm so it makes make sense that
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6. POLYMERS and elastomers Lecture no. 1 Objectives: Definition‚ Functionality‚ Classification of high polymers – based on origin‚ molecular structure. 6.1.1. DEFINITION: The word polymer is derived from the two greek words‚ poly and meros‚ meaning many and parts or units respectively. Polymers are macro molecules formed by linking smaller molecules repeatedly‚ called monomers. Examples: Polythene is formed by linking a large number of ethene (or ethylene) molecules together
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AIM: TO MAKE BAKELITE USING PHENOL AND FORMALDEHYDE. INDRODUCTION: WHAT IS BAKELITE? Bakelite or polyoxybenzylmethylenglycolanhydride is an early plastic. It is a thermosetting phenol formaldehyde resin‚ formed from an elimination reaction of phenol with formaldehyde. It was developed by Belgian-born chemist Leo Baekeland in New York in 1907. One of the first plastics made from synthetic components‚ Bakelite was used for its electrical non-conductivity and heat-resistant properties
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the difference of boiling point of ethanol and water leading them to complete separation through the distillation process. I. Introduction Distillation is the conversion by heat of a solid or liquid substance into vapor and the subsequent condensation of this. When distillation is conducted at the atmospheric pressure‚ it is called ordinary distillation; if in a partial vacuum‚ vacuum distillation. The object of distillation is either to test the purity of an individual substance by the determination
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a dipeptide. This happens when the carboxyl group of an amino acid and the amino group of another amino acid link up through a condensation reaction (which involves the removal of a water molecule). When this process happens at least nine times to form a polypeptide‚ it is called polymerisation. The reverse of this condensation reaction can happen by adding a water molecule to break the peptide bond. This process is called hydrolysis. Protein Structure
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light gives the photo a larger narrative and that perhaps is what Hido is most interested in. Hido’s A Road Divided series consists of landscape photography. These photos were captured from the inside of his car. The fogginess is caused by the condensation in his car. He says that it’s rather personal‚ having his breath make part of the image. To me‚ these feel reminiscent of impressionistic art. The photos evoke feeling‚ color‚ movement‚ and are less crisp than his house photos. “4078” is part
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into the vapor form and then allowed to enter the fractionating tower. The temperature in fractionating tower differs with the height. Fractionating tower is provided with the different tray like shelves where different fractions having different condensation temperatures are obtained. Although the products obtained from this technique is not 100% pure. Every fraction obtained from the distillation column still contains some impurity of the fraction lower to it. These are separated and if more purification
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Schidle’s List‚ Pride and Prejudice‚ American Beauty‚ Out of Africa‚ After the Sunset for illustration‚ the author puts forward six workable strategies for subtitling translation‚ namely‚ the avoidance of mistakes on common sense‚ the application of condensation‚ due attention of cultural factors‚ the adoption of colloquial words with natural and fluent tone，the achievement of harmony between speed and visual pictures‚ good consideration of context. Finally‚ the importance of improving translation skills
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Meteorological Phenomena 1) The dipping duck 2) Galileo’s thermometer 3 Light engine 4) Willy-willy 5) Dust Storm 6) Cloud Colour 7) Global dimming 8) Temperature Inversions 9) Sun Halo 10) Water Evaporates below Boiling Point 11) Why sky is blue below 30km & black above 12) Why is temperature max reached after noon 13) Fog (glasses question) 14) Ozone hole in spring 15) What makes mountains in distance appear blue 16) Temperature range with latitude 17) When there is dew‚ there
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SUB : CHEMISTRY Matter In Our Sorroundings 1. Define matter. 2. What are the characteristics of matter? 3. What do you mean by the following terms: a. Evaporation b. Sublimation c. Condensation d. Latent Heat of Fusion e. Latent Heat of vaporisation. f. . Melting point g. Boiling point 4. Why do gases diffuse rapidly? 5. Write the relationship between Celsius scale and Kelvin scale of temperature
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