Since the Grignard reagent can easily react with water‚ all glassware including the 25 ml round bottom flask‚ magnetic stir bar‚ 3 and 5 ml conical vial‚ 50 mL Erlenmeyer flask‚ claisen adapter‚ drying tube and 5 glass pasteur pipets were first added to a 250mL beaker and placed in the oven for 30 minutes. After the completion of the thirty minutes‚ 0.150 g of shiny magnesium turnings and a stir bar was first added to the round bottom flask and the claisen adapter along with the drying tube packed
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THE ADVANTAGES AND DISADVANTAGES OF OWNING AN IPOD TOUCH VS. AN IPAD Prepared for Dr. William Rivers Professor of English 466 Prepared by Eugene Goncharov Student of English 466 Goldey-Beacom College December 1‚ 2010 Memo of transmittal: To: Dr William Rivers From: Eugene Goncharov Date: Dec. 1‚ 2010 Subject: The advantages and disadvantages of owning an iPod Touch vs. an iPad Here is the report you requested earlier in the semester. I am a computer science major and
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27th was about whether teachers should be allowed to touch students or not. This was debated by Kaitlyn on the affirmative side and Clay and Abdi on the negative side. Kaitlyn’s opening statement Started by pointing out that the debate is not about inappropriate touching of students its just about whether or not simple everyday touching is acceptable. Then she referred to an article written by neurologist David J. Linden that states that “touch is a way of putting people into a calmer mental state”
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Energy Lab On November 13th‚ we did a lab to learn about energy. The definition of Kinetic Energy is energy of movement. The definition of Gravitational Potential Energy is energy in an object due to its positioning. The question that we had to answer was whether of not we could calculate the Gravitational Potential Energy and Kinetic Energy of various objects in different locations. To do this lab we had to first weigh the given objects. For this time‚ we weighed : a marble‚ a bouncy ball‚
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Media essay OCR G322 - A Touch of Frost (Disability) The first scene we see is of a boy (Billy) walking through the woods at night dusting of his knees. He is very well lit and has a mischievous look on his face also his face is cut. He looks surprised and panicked when the police shout at him and chase after him‚ once the police have taken him down we get a close up of Billy’s face it’s not until then we realise that the Billy is down syndrome and we begin to feel guilty when he shouts ‘I haven’t
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Touchstone is a clown‚ or fool‚ in Duke Frederick’s household. He may not be a vigorous male character‚ but he is a man nonetheless‚ and Celia and Rosalind decide to take him along as an extra measure of security on their journey to the Forest of Arden. When he arrives in the forest he finds that his familiarity with the language and customs of the court impress the simple shepherds and goatherds‚ so he uses this advantage to further his lustful designs on Audrey and marry her in what is typically
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Alpha Males: Tough Guys or Tough Guise? In the animal kingdom the presence of an alpha male is often part of the social order. These dominant males find their rank amongst their peers through displays of physical prowess and dominance. Earning this esteemed position often affords ample opportunity to mate in a system developed to ensure only the strongest and most resilient offspring. In American society today‚ even the considerably less masculine men often find ways to woo a partner. Despite this
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Purpose: To find out the densities and to find out the name of the unknown metals. (Based on the extensive and intensive properties) Check up the words mass‚ volume‚ density‚ extensive properties‚ and intensive properties. Where do the units for mass and volume) come from and what do they mean? What is the density of distilled water? What is Archimedes principle? Does temperature affect the density of a solid? Liquid? Gas? Materials: Safety glasses‚ 10‚ 25 or 50 mL graduated cylinders
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LAB REPORT Introduction: In a chemical change‚ the identities of substances change and new substances form. In an equation the substances on the left are the reactants. The substances on the right are the products. In this experiment the objectives are to observe evidence that a chemical change has taken place. Infer from observations that a new substance has been formed. Identify and record observations that show energy is involved in chemical change observe the color‚ solubility of some substances
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Mg‚ Fe * copper (II) sulphate solution Safety: 1. Be careful with copper (II) sulphate solution it is poisonous and corrosive. handle with care 2. Do NOT BREATH in any gases produced 3. If you touch any of the metals‚ you MUST wash your hands at the end of the lab Procedure: 1. Collect the materials and put on safety equipment. 2. Observe the metals and record your observations. 3. Into separate test tubes‚ place each metal inside. Label accordingly to metal.
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