Weekly iLab iLab: Bacterial Growth and Controlling Bacterial Growth Scenario/Summary: This week’s experiment focuses on bacterial growth and methods to control bacterial growth. This week’s experiment will be conducted in two parts: Experiment I: Growth Media and Patterns of Growth and Experiment II: Controlling Microbial Growth. Experiment I: Growth Media and Patterns of Growth. In part I of this week’s experiment‚ you will explore the characteristics of several types of growth media. For example
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(AMD) problems are the most important environmental problems in sulphide mines especially mines which contain pyrite. Oxidation of sulphides in contact with air and water produces sulphuric acid which reduces the pH of water. The result of these reactions is increase in the solubility of heavy metals and consequently pollution of water resources. The Sarcheshmeh copper mine is one of the largest porphyry copper mines in the world which is located in south-eastern Iran. Chemical analysis of over than
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Homework Problems Professor Hubler 07/12/2015 1. When an investor uses the equity method to account for investments in common stock‚ cash dividends received by the investor from the investee should be recorded as? D. A deduction from the investment account DI. DII. Sisk Company has owned 10 percent of Maust‚ Inc.‚ for the past several years. This ownership did not allow Sisk to have significant influence over Maust. Recently‚ Sisk acquired an additional 30 percent of Maust and now will use the
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PUTTING IT TOGETHER: Classifying Chemical Reactions Purpose: To observe and differentiate between the four different types of chemical reactions. Variables: The independent variables are the sodium chloride‚ sodium carbonate‚ magnesium‚copper‚ copper (11) sulfate‚ silver nitrate‚ oxygen‚ lead(11) nitrate‚ sodium carbonate‚ copper (11) sulfate pentahydrate. The dependent variables are the chemical reactions that are being looked for. For example decomposition‚ synthesis‚ single displacement or double
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Mark Devries‚ “These pools are near people’s homes‚ people’s schools‚ people’s neighborhoods.” Devries said in an interview. “You think it’s raining‚” Elsie Herring‚ a woman who lives near a pig farm said in the video. The film was directed and filmed by Mark Devries who is a Washington University law student. The video was released in December 2014. Factory farms create health hazards
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Math assessment 2-23-12 1. Write 5.7% as an equivalent decimal. (Points : 1) 5.7 0.57 0.057 570 None of the above | 2. Write 7.319 as an equivalent fraction. (Points : 1) 7‚319/10 7‚319/100 7‚319/1‚000 7‚319/10‚000 None of the above | 3. Write 1.035 as an equivalent percent(%). (Points : 1) 1.035% 10.35% 103.5% 0.0135% None of the above | 4. 25 is 40% of what number
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packed tightly together to maximize the attraction between the ions. When two compounds are mixed together‚ they form a precipitate. A precipitate is solid that is formed from a chemical reaction. A cation is a positively charged ion and an anion is a negatively charged ion. Hypothesis: The anion and the cation will react to form a precipitate more often than not.
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Chapter 9 Recommended Methods for Determining Soil Cation Exchange Capacity Donald S. Ross and Quirine Ketterings The cation exchange capacity (CEC) of a soil is a measure of the quantity of negatively charged sites on soil surfaces that can retain positively charged ions (cations) such as calcium (Ca2+)‚ magnesium (Mg2+)‚ and potassium (K+)‚ by electrostatic forces. Cations retained electrostatically are easily exchangeable with cations in the soil solution so a soil with a higher CEC has
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Lalaland Hector Canales DeVry University Online HOSP 330 Kelli Price December 15‚ 2013 Table of Contents 1. Executive Summary 2. The Challenge 3. Company Analysis 4. Customer Analysis 5. Competitor Analysis 6. Political Factors 7. Economic Factors 8. Social Factors 9. Technological Factors 10. Goals 11. SWOT Analysis 12. Product 13. Price 14. Distribution 15. Promotion 16. Rules for Entering Lalaland 17. Potential
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REACTIONS OF HYDROCARBONS Vanessa P. Manibpel De La Salle University - Dasmariñas ABSTRACT Five substances namely Hexane‚ Eugenol‚ Unknown hydrocarbon 1‚ Unknown hydrocarbon 2‚ and Acetylene gas was used for the selective reactivity of hydrocarbons to functional group tests; Bayer’s test‚ Bromine test light‚ Bromine test dark‚ and Tollen’s test. In Bayer’s test‚ only Acetylene‚ Eugenol and Unknown hydrocarbon 2 reacted positively and the rest retain the purplish color of KMnO4. On the other hand
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