CASE STUDY 1: Xstrata Produced Acidic Oxide – SULFUR DIOXIDE Industrial Process – Sulfur Dioxide is an acidic oxide produced domestically and industrially in many ways. Xstrata‚ particularly Mount Isa Mines LTD‚ produces sulfur dioxide as a by-product from the extraction of copper from ores. Copper ore mined in Australia is predominantly chalcopyrite (CuFeS2)‚ a sulfide ore of copper. The extraction of copper begins with crushing the ore and subjecting the crushed ore to froth floatation. In
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Rennet (pron.: /ˈrɛnɨt/) is a complex of enzymes produced in any mammalian stomach‚ and is often used in the production of cheese. Rennet contains many enzymes‚ including a proteolytic enzyme (protease) that coagulates the milk‚ causing it to separate into solids (curds) and liquid (whey). They are also very important in the stomach of young mammals as they digest their mothers ’ milk. The active enzyme in rennet is called chymosin or rennin (EC 3.4.23.4) but there are also other important enzymes
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metabolism. It is produced by photo-phosphorylation and cellular respiration and used by enzymes and structural proteins in many cellular processes‚ including active transport‚ respiration‚ and cell division. One molecule of ATP contains three phosphate groups‚ and it is produced by ATP synthase from inorganic phosphate and adenosine diphosphate (ADP). ATP is used is many organisms and also in different ways. Below are a few ways in which ATP is used. When muscles contract in any organism‚ it means muscle
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were identified with the observation that the colour of some flowers depend on soil composition Classify common substances as acidic‚ basic or neutral * An acid is a substance which in solution produces hydrogen ions‚ H+ or more strictly H3O+‚ sometimes called hydronium ions * A base is a substance which either contains the oxide O2- or hydroxide ion OH- or which in solution produces the hydroxide ion. * A soluble base is called an alkali Common properties of all acids: * Sour taste
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complete. Chemists also need to monitor how acidic or alkaline waste solutions from industries are before they are pumped into rivers or the sea. Regulations are strict as wastes or effluent that are too acidic or too basic can be harmful to the environment. • • Many people who are not chemists use indicators for: The water in aquariums needs to be tested. Fish are sensitive to changes in their water. If the water becomes too alkaline or too acidic it will kill fish and plants. The water in
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Measurable Annual Goals: (Must include condition‚ content‚ criteria expressed in observable‚ measurable terms.) Reading Goal(s): *Susan will be able to identify 15-20 sight words. *Susan will participate on a regular basis in speech‚ language and occupational therapies. *Susan will begin decoding words. Written Expression Goal(s): *Susan will be able to write her numbers up to thirty. *Susan will learn to write her letters both in lowercase and in capitalization
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the poem. The Author uses the Farrand Chappelette which is a type of Harmonium or small organ to help him reflect the love that he has for his father. In the first stanza the poet talks about the Farrand Chappelette which was “gathering dust” telling us that it is getting old and it was due to be taken to the skip if Armitage had not wanted it. In the final line of the first stanza Armitage declare that he could have it for a “song “ an idiom which means that he could have had it very cheap. In the
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Phenols and polyphenols are compounds found naturally in plants. A group of natural phenols called the flavonoids are of popular interest because researchers have found them to have the potential to contribute to better health.[1][2][3][4][5] Tea has one of the highest contents of flavonoids among common food and beverage products.[6] Catechins are the largest type of flavonoids in growing tea leaves.[7] Contents [hide] * 1 Catechins * 2 Theaflavins * 3 Tannins * 4 Metabolism * 5 See
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CHAPTER 16 COST ALLOCATION: JOINT PRODUCTS AND BYPRODUCTS 16-1 Exhibit 16-1 presents many examples of joint products from four different general industries. These include: Industry Separable Products at the Splitoff Point Food Processing: • Lamb • Lamb cuts‚ tripe‚ hides‚ bones‚ fat • Turkey • Breasts‚ wings‚ thighs‚ poultry meal Extractive: • Petroleum • Crude oil‚ natural gas 16-2 A joint cost is a cost of a production process that yields multiple products simultaneously. A separable
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(4) uses of energy in biological processes (B); active transport; muscle contraction; nerve transmission; synthesis; translocation; nitrogen fixation; receptors ENERGY TRANSFERS WHICH TAKE PLACE INSIDE LIVING ORGANISMS Living organisms including all plants and animals require energy for their cellular processes. In biological processes‚ the immediate energy source is often in the form adenosine triphosphate (ATP). The nucleotide ATP maintains both catabolic and anabolic reactions. An example of
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