groups‚ which are: • Metallic substances • Ionic compounds • Covalent molecular and; • Covalent network substances Metallic substances are substances that are made up of one or more metal. They have regular 3D lattice of positively charged ions. Metallic substances are bond together by metallic bond which has strong electrostatic attraction between the positive ions and the delocalised electrons. These delocalised electrons carry current giving metallic substance the ability to
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that were produced by specific metallic ions that are shown in a flame. This happens when an electron gains energy; the electron moves from an energy level that’s farthest away and to an empty orbital close to the nucleus with higher levels‚ so one of the electrons gives off energy. A flame test is a visual test where the energy is in the form of a color change and the change can be seen based off it. Therefore‚ different metals emit different color. When a metallic ion is heated in a flame test the
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TREATMENT OF CORROSION Regardless of the type of corrosion or the metal involved‚ corrosion treatment requires three basic steps: 1. Remove as much of the corrosion as possible. 2. Neutralize any residual material. 3. Restore the protective surface film. CORROSION REMOVAL As previously discussed‚ the first step in corrosion control must be cleaning the surface. After the surface is completely clean and it is determined that corrosion does exist‚ the damage must be carefully assessed
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Animal testing is one of the few animal cruelty’s in the US‚ testing is in the laboratories for human products such as makeup hair products and many more. “Animal testing originated by the early Greeks physician-scientists‚ such as Aristotle‚ 384 – 322 BC. An Arab physician in twelfth-century Moorish Spain introduced animal testing as an experimental method for testing surgical procedures before applying them to human patients.” (History Of Animal Testing) Every year in America more than 105‚000
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De- is almost always used before a verb‚ or a word formed from that verb‚ and means to reverse the verb’s action‚ as in dehydrate or detoxify. (It has other meanings in addition to making a verb negative.) Dis- can be used with verbs‚ nouns‚ adjectives or adverbs.It also has other meanings besides making words negative. In-‚ non-‚ and un- are usually used for nouns‚ adjectives‚ or the adverbs formed from them‚ and they mean not _____. (In- is from Latin‚ non- from Old French‚ and un- from Old English
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Introduction Metallic yarns or threads‚ in general‚ have been known for more than 3000 years. Gold and silver were hammered into extremely thin sheets‚ then cut into ribbons and worked into fabrics. These were the first ‘man made’ fibres‚ which came thousands of years before nylon or rayon. The Persians made fabulous carpets with gold thread and the Indians‚ ornamental sarees with it. The metal threads were twisted‚ doubled or wrapped around some other thread such as cotton. With the advancement
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continue soaking. Six weighing dishes were then labeled “NaCl”‚ “Sr(NO3)2”‚ “CuCl2”‚ “LiCl”‚ ” KCl”‚ and “BaCl2” were obtained. Each contained a scoop full of each metallic solid in the corresponding weighing dish. After this‚ the Bunsen burner was carefully lit. The soaked end of one of the metallic splints was then dipped in one of the metallic salts. The “dipped” wooden splint was then placed into the flame and the color was observed. If any of the solid fell on the lab bench or Bunsen burner the test
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CH 222 ANALYTICAL CHEMISTRY I SYLLABUS COURSE OUTLINE: a. Introduction (1.5 hours) Classification of types of analysis‚ role and importance of analytical chemistry in various aspects of life. b. Steps in a typical quantitative analysis (10 hours) Emphasis on sampling protocol‚ sample preparation‚ wet chemistry methods‚ statistical evaluation of data. c. Review of concepts of stoichiometry (2 hours) Mole concept‚ concentrations‚ dilution and aliquots d. Review of concepts of equilibria
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the paper which well holds with solution‚ adding 10 drops of 6.0M HCL on the larger well‚ making sure that a clean flame test wire was being used by holding the metal loop in the hottest part of the Bunsen burner flame‚ making a table showing the metallic solution and the color of the flame‚ cleaning the flame test wire then testing more known solution until all the colors of all the known solutions were recorded‚ and finally‚ by cleaning the micro plate by rinsing it in water in the sink. The results
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members of Karnataka State Level Expert Appraisal Committee Proposed Project 32 MW Captive Power Plant in Existing Ferro Alloy Unit Proponent M/s. Star Metallics & Power Pvt. Ltd. Hospet‚ Karnataka. Karnataka SEAC PPT For EC of Star Metallics & Power Pvt. Ltd. 1 PROJECT HIGHLIGHTS Name of company M/s. Star Metallics & Power Pvt. Ltd Promoter of company EIEL‚ India & ETA group‚ Dubai. Location Vyasankere‚ Ta: Hospet‚ Dist.: Bellary District: Karnataka EXISTING PROJECT
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