Chilean copper mine collapse Latasha Mcclure BCOM/275 September 26‚ 2012 Kwanis Nelson Chilean copper mine collapse On August 5 the Minera San Esteban Company regretfully announces that part of one of our mining sites has collapse. Leaving 33 of our workers trapped underground (Weik‚ 2010). It is not yet clear what caused the roof to collapse the company will launch a thorough investigation (Parry‚ Rettner‚ 2010). The Chile copper mine collapse is very stressful for all parties involved
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Question/Purpose: The Question or Purpose of our lab is to answer the question “How is the germination of a seed affected by sunlight?” Experimental Hypothesis: We believe these results will occur. 1. The seeds that are water deprived (1 mL of H2O a day) will not grow very well due to a lack of water which is important in photosynthesis and also lacks nutrients. The seeds may also die off due to a lack of water. 2. The seeds that are have a proper amount of water (10 mL of
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Chilean Copper Mine Collapse Sabrina Green BCOM/275 Week 4 Celeste Bajorek Chilean Copper Mine Collapse On Thursday‚ August 5‚ 2010‚ the collapse of one of the shafts in the Chilean copper mine left 33 workers trapped approximately 300 meters underground. Rescue efforts began at once‚ but just two days later another collapse in the mine halted the efforts of the rescue crews for many hours (Weil‚ 2010). With such a devastating situation‚ the company should take
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Raising Awareness By: Tina Vu As a cadette‚ The Girl Scout Silver Award is one of the most important things to achieve in my life. This is an important step to help me build leadership and organization. My purpose for this project is to raise awareness for problems in the world‚ and maybe even discover solutions for them. Raising awareness isn’t just about educating people of what the things are‚ but on how you earn them as well as how you can stop yourself from getting such. What I basically
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sodium hydroxide Ice 0.1 M lead nitrate 0.1 M barium chloride 1.0 M cadmium chloride 1.0 M ammonium chloride potassium chloride 0.1 M potassium chloride 0.1 M copper (II) sulfate 0.1 M trisodium phosphate 0.1 M sodium sulfide 0.1 M sodium nitrate
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Flame Lab Objective: How an electron absorbs energy and re-emits it as light and why different elements have different spectra. Also to learn how to use flame tests to determine the identity of unknown mixtures. Hypothesis: We know that certain compounds will burn certain flame colors because they emit different wave lengths. Introduction: Neils Bohr made the “Bohr’s Model” in 1922‚ he found that electron travel in specified fields – which‚ when excited‚ will jump to different rings
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is to make more friends. In the article “The Quagmire of Social Media Friendship” by Curtis Silver‚ she believes that online friendship represents a merely “ghostly” version of actual friendship (1). These words of Silver describes that online friendship is dangerous because people can’t see whoever they are talking to‚ and they can’t believe if the person is trustworthy or not. I disagree with Silver on this argument because it plays an important role in life‚ which people use to share their
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the Laboratory’1. Specifically‚ 1.90 grams of KCL was weighed in a 250ml beaker and dissolved in 25 ml of deionized water. This solution was then quantitatively transferred to a 250ml volumetric flask. Proper technique is needed for quantitative analysis. This transfer was done to ensure that there was no detectable KCl left in the beaker. After transferring the solution add 3 drops of AgNO3 to the rinsed beaked to check the completeness of the transfer. Now take the volumetric flask and add deionized
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Introduction Chemical kinetics is the study of reaction rates. A reaction rate is the speed of the change in either reactants or products over a period of time. General kinetic rate equation is: Where [A] and [B] are the concentration of the species in the reaction. The variable k is the rate constant‚ which is a function of time and catalyst presence. The variables m and n are the order of reaction for their respective species concentration. The higher the value of the reaction order the
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In this lab we are going to be observing the decomposition of piglets over a month’s time. There are theory questions that have been given to us before and after the lab. We look back at our original theory to see where we went wrong‚ and then correct it. The lab was disgusting‚ surprising‚ and very interesting. The first questioned to be answered is which piglet decomposes faster‚ a piglet that is in its natural state‚ that is burnt‚ that is buried‚ and that is buried in a wooden box? With
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