Microbiology Coursework: Bacillus cereus After investigation following on outbreak of food poisoning at a pizza restaurant‚ it was found that all suffers had consumed a portion of side salad from the self-service salad bar alongside their main dish. Subsequently‚ this was further traced to a rice salad. Environmental Health Officers investigating this outbreak suspected it may have been caused by Bacillus cereus (B. cereus). The presence of large numbers of B. cereus in a food is indicative
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Molly Hubner Period 1 Extra Credit Paper Chemistry of Cancer Cancerous cells develop when conditions for cells are favorable‚ therefore following the divisions to continually occur‚ never stopping. When this happens‚ a tissue mass of cells called a tumor is formed and does not respond to normal controls regarding cell growth. Cancer cells have the following characteristics: profound changes in the plasma and membrane cytoplasm
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NH3‚ and H+ [pic] ▪ Metallic bonding – metals lose their outer shell electrons to produce a lattice of positive metal ions surrounded by delocalised (free) electrons. [pic] 3) Types of Structure a) Giant ionic lattices e.g. sodium chloride o Lattice of oppositely charged ions. o High melting and boiling points (strong forces of attraction between ions need to be broken). o Do not conduct when
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Chemistry and Society According to the Merriam-Webster Dictionary‚ accuracy is “freedom from mistake or error: the quality or state of being accurate: the ability to work or perform without making mistakes” ("accuracy‚" 2014). Precision‚ however‚ is “the quality of being precise” ("precision‚" 2014). That doesn’t really help with the definition much. After subsequently checking the definition for precise it means to be “very careful and exact about the details of something” ("precise‚" 2014). The
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scenarios. C.I. Shooting Sports will not only have guns for sale‚ but also an expanded clothing line. They have 5.11 Tactical apparel and accessories for men and women‚ plus gear for a variety of outdoor sports and first responders. Research The chemistry related question I have come up with for this article is‚ “What chemical qualities of rubber make it a good barrier at the end of the shooting lanes?” This question connects to the article because the new range uses rubber to slow the bullets at
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University of Phoenix Material The Chemistry of Life Worksheet Consult your weekly reading and the following nutrition website: http://www.nutrition.gov/whats-food/carbohydrates-proteins-fats-fiber Answer each of the following questions in a minimum of 150 words. Question: Student Response: 1. What is the significance of proteins‚ carbohydrates‚ fats and fiber in a healthy diet? Why do living organisms need these molecules? When looking at these nutrients they each have their own individual
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Besides the other topics involved in Asbestos‚ they have chemicals and chemistry involved. “Naturally occurring asbestos can be found most abundantly in and around Humboldt County‚ in areas of San Benito and Monterey counties‚ and in western El Dorado county” ("Naturally Occurring Asbestos"). Asbestos is not a human substance or a chemical‚ but it is made out of stone. There are a group of six naturally occurring silicate minerals that is inside found in rock and soil which are: amosite (Fe7Si8O22(OH))2
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title: PHYSICAL CHEMISTRY Course of study: Foundation in Science Contact Hours: 2 lecture contact hours per week for the duration of 14 weeks. 1 tutorial contact hour per week for the duration of 12 weeks. 2 practical contact hours per week for the duration of 10 weeks. Mode of delivery: Lecture‚ tutorial & experiment Attendance for lectures‚ tutorials and experiments are compulsory for every student. Main Text: Kotz‚ J. C.‚ Treichel‚ P. M.‚ & Townsend‚ J. R. (2012). Chemistry & chemical reactivity
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Chemistry Unit 2 Area of Study: 1: Water Chapter 11: Measuring solubility Measuring Solubility Solubility: the maximum amount of that substance that can be dissolved in a that temperature Saturated solution: a solution which no more solute can be dissolved at that temperature Measuring solubility Determine the maximum mass of solute that can be dissolved in 100 grams of solvent at a particular temperature Worked Example A maximum of a 6g of solute can be dissolved in 20g of water at 20ºC
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CH213. Physical Chemistry II. Final Exam Your Name: Your Student Number: 110 Normal Points + 10 Bonus Points If you get 110 points out of 120 points‚ you will get the full 40% assigned to the midterm exam. Your scores 1) 2) 3) 4) 5) 6) Total: out of 25 out of 20 out of 20 out of 15 out of 20 out of 20 out of 120 * All the problems are connected. In other words‚ to solve the problem‚ you may need the information and/or answers given in other problems. All necessary information is basically
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