Name: Chelsea Smith States of Matter Lab Procedure: Go to: HYPERLINK "http://phet.colorado.edu/en/simulation/states-of-matter" http://phet.colorado.edu/en/simulation/states-of-matter and click on Run Now States of Matter Review: Kinetic energy (KE) is the energy of motion. Potential energy (PE) is the energy of position. What property of a substance corresponds to the average KE of its particles? Temperature What property of a substance corresponds to the average PE of its particles
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concentrated solutions of barium and calcium chloride‚ then the highest concentration of calcium chloride would affect them the most because of the production of hydrochloric acid and calcium oxide from the mixing of water and calcium chloride‚ two very dangerous acids‚ with the highest concentration having the biggest chemical reaction. Within five minutes of putting the Daphnia into the 10 (ppt) solution of calcium chloride‚ one or more of the Daphnia died. The Daphnia in the 1 (ppt) solution of calcium
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share price is $ 32. 5. Calculating Average Returns ( LO1‚ CFA1) The rate of return on Cherry Jalopies‚ Inc.‚ stock over the last fi ve years was 17 percent‚ 11 percent‚ 2 percent‚ 3 percent‚ and 14 percent. Over the same period‚ the return on Straw Construction Company’s stock was 16 percent‚ 18 percent‚ 6 percent‚ 1 percent‚ and 22 percent. What was the arithmetic average return on each stock over this period? 6. Calculating Variability ( LO4‚ CFA2) Using the information from the previous
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Composition 1 The human desire to look attractive is universal and because of this‚ cosmetic surgery is now a multi-million dollar industry. Write a letter to the editor of Hong Kong Express about the obsession with physical beauty. Dear Editor: I am writing to express my obsession with physical beauty. The recent case of a famous female celebrity in Hong Kong who receiving multiple cosmetic surgeries voraciously has been brought to public attention: she lost her money‚ lost her face and above
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factors. Many believe that it is hard work that bring them success‚ others think that luck is more important. I totally agree with the quotation‚ because I believe that success comes from hard work‚ as Newton said “Genius is one percent inspiration and ninety nine percent perspiration”. People often believe that luck is something that is beyond our control. How can we know when we get a big contract? How can we predict when our experiment give way for a new discovery? I disagree with this kind
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PROPERTIES OF SOLUTIONS A solution is a mixture of materials‚ one of which is usually a fluid. A fluid is a material that flows‚ such as a liquid or a gas. The fluid of a solution is usually the solvent. The material other than the solvent is the solute. We say that we dissolve the solute into the solvent. Some solutions are so common to us that we give them a unique name. A solution of water and sugar is called syrup. A solution of sodium chloride (common table salt) in water is called brine
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Original Composition While the cancerous fumes entered my lungs‚ the life threatening chemicals made me feel relaxingly calm‚ so I continued anyways. That was when I was still a kid‚ a fourteen year old nicotine addict‚ presently I am sixteen. I still remember those days in the past. Sometimes I used to question myself‚ “When will this addiction cease?” I have never obtained an answer to that question‚ until recently‚ when I experienced the loss of my best friend. The cause of death was from second-hand
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Hannah Davis Cozma Composition I 27 June 2013 My Eighth Grade Experience The events we go through during life’s course influence our outlook on life and helps assemble who we are as individuals. These events can either have a negative impact or a positive impact. I have chosen to share a personal event that had a positive impact on my life. As a young child I always detested school‚ therefore I never tried to do my best because it was not important to me. Every school year was the same‚ I socialized
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EGG – ITS COMPOSITION AND FUNCTIONS Eggs are laid by females of many different species‚ including birds‚ reptiles‚ amphibians‚ and fish‚ and have probably been eaten by mankind for millennia. Bird and reptile eggs consist of a protective eggshell‚ albumen (egg white)‚ and vittles (egg yolk)‚ contained within various thin membranes. Popular choices for egg consumption are chicken‚ duck‚ quail‚ roe‚ and caviar‚ but the egg most often consumed by humans is the chicken egg‚ by a wide
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Method 1.Firstly I will measure 20ml of Copper Sulphate solution (CuSO4) in a measuring cylinder‚ for precise accuracy‚ and then pour the solution into test tube. I will place the test tube into a beaker and insulate the test tube‚ for minimum heat loss. (As shown in the diagram above.) 2.Secondly I will measure the required amount of Zinc (Zn) on a weighing scale‚ again for precise accuracy. I will then measure the starting temperature using a thermometer. Next I will pour the Zinc into the test
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