any waste compounds introduced into such waterways will initiate biochemical reactions (such as shown above). Those biochemical reactions create what is measured in the laboratory as the Biochemical oxygen demand (BOD). Such chemicals are also liable to be broken down using strong oxidizing agents and these chemical reactions create what is measured in the laboratory as the Chemical oxygen demand (COD). Both the BOD and COD tests are a measure of the relative oxygen-depletion effect of a waste contaminant
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Plane and Solid Geometry Formulas ASIAN DEVELOPMENT FOUNDATION COLLEGE Tacloban City Given four sides a‚ b‚ c‚ d‚ and sum of two opposite angles: Prepared by: RTFVerterra 10 sides 11 sides 12 sides 15 sides 16 sides = = = = = decagon undecagon dodecagon quindecagon hexadecagon RADIUS OF CIRCLES Circle circumscribed about a triangle (Cicumcircle) A= (s − a)(s − b)(s − c)(s − d) − abcdcos2 θ s= a+b+c+d 2 ∠A + ∠C ∠B + ∠D θ= or θ = 2 2 The content of this material is one of the intellectual
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into good useTo gain knowledge on how composting eliminates organic wasteTo consider how composting can generate income through p-patch projects‚ since organically grown food is in high demandTo encourage Donations of edible food‚ as this can reduce waste‚ mitigate climate impacts and provide cost savings for individuals and businesses alike | Specific Purpose: | Sending edible food or food scrap to landfills is not healthy or economical. | Central Idea: | Edible food scrap is useful and should
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Separation of a Mixture of Solids Lab: Separation of a Mixture of Solids Experiment PURPOSE The purpose of this experiment was to learn how to separate a mixture of solids. DATA | | |Data Table 1: Experiment Data | | |Grams |Percent of mixture | |Iron filings |2.2
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Clean Up Of Chemical Waste Chemical spills are major problems that haunt the environment. Strict government regulation are trying help this problem‚ but governmental leaders face many challenges. Disposal of harmful chemicals is often difficult and costly. Since chemical waste has destroyed the environment‚ steps are being taken to prevent further pollution‚ Like the Yucca mountain project. A local based pharmaceutical company named Novo Nordisk released its 1999 environmental report. The company
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Separation of a Mixture of Solids I really enjoyed this lab. After reading the introduction I started by making my own flow sheet of how I thought this lab would work. I was reminded about solubility which is defined as the amount of the solute that will dissolve in a given amount of solvent and that the extent to which a substance dissolves depends mainly upon the physical properties of the solvent and of the solute and to some extent upon the solvent’s temperature. With that being said I came
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Ocean county college | SEPERATION OF A MIXTURE OF SOLIDS | DEPARTMENT OF CHEMISTRY | | John Curran | 2/23/2013 | COURSE INSTRUCTOR DR. NANCY MARASHI. | Background: During this experiment students will take a mixture and separate it into its’ pure substances. A mixture is a combination of two or more substance. These substances cannot be combined chemically but more physically. The pure substances are substances that cannot be separated any more by physical means. The students
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The Waste Land‚ a 434-line modernist poem by T.S. Eliot revolves around a world of what seems to be chaotic and dead‚ and led by a single protagonist. Throughout The Waste Land‚ there are many uses of symbolism with tarot cards‚ astrology‚ and especially the game of chess: The game of chess is such a meaningful symbol throughout the story‚ that metaphors are used to describe the situation and emotions of the characters throughout the poem by describing them as chess pieces and in check-mate situations
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The article “Food waste: Is America throwing away food too soon?” by Sean Rossman brought light to an epidemic we face in our country today‚ food waste. I couldn’t help but nod my head in agreement while reading‚ as everything the author discussed was accurate. This got me thinking‚ and I came to the realization that my family is a part of the problem and were oblivious to it. We throw away food all the time and don’t see anything wrong with it. However‚ my point of view on the situation changed
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LAB 4 – SEPARATION OF A MIXTURE OF SOLIDS Purpose: To determine and execute the separation of mixture of solids through different means. Examples are magnetisms‚ evaporation‚ and filtration. Observations and Experimental Data: Data Table 1: Experiment Data Grams Percent of mixture Iron filings 1.4 g 31.1 % Sand 1.3g 28.9 % Table salt 1.0g 22.2% Benzoic acid .8g 17.8 % Total 4.5g 100% Questions: A. How did your proposed procedures or flow charts
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