Firework How are the colors in fireworks produced? When I first thought about where the colors from fireworks came from‚ I thought that they came from food coloring that was mixed with gun powder. Also‚ from previous knowledge that I had about how neon lights were formed‚ I imagined that the electrons got excited when they got some sort of voltage or energy‚ and I also knew that when they got relaxed they emitted energy known as photons or light. However‚ this does not explain the colors in a firework
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Copper Chloride Lab Report Procedure Part A: 1. Pick up the container of copper chloride dehydrate‚ and observe material. Describe crystals in detail‚ and write down all of the observations. Part B: 1. Take a 100 ml beaker and fill ¼ of it with water. Use a spatula to add some copper chloride dehydrate to the beaker filled with water. Record the observations. Be sure to observe the water and the copper chloride dehydrate. 2. Stir the contents in the beaker with
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THE QUİKENİNG The Quickening is a short story by Lisa Interollo. This story is about how a girl growing up been in the mistakes. The main characters are Vicky‚ Susan‚ and Mr.Donnelly. Vicky is a girl who doesn’t get any love from her family‚ she doesn’t have any idea about something what is true and fault. So she learns everything is through by something she saw. Susan is Vicky’s friend in the High School. She also is the partner of Vicky for shoplifters. Mr.Donnelly is a music teacher who is only
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How Much Gas is Produced? Julie Dang June 23‚ 2013 Purpose The Company ABC Chemical has asked our group to investigate the gas production from a number of various chemical reactions. The company would like us to measure the amount of product we get when we measure the amount of gas from two reactions. We will then compare our data to the predicted amount which will we will calculate based of the Law of conservation of Mass and Ideal Gas Laws. Methods Materials Thermometer CaCO3
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STRENGTHENING OF METALS There are 4 major ways to strengthen metals‚ and all work because they make dislocation motion more difficult. They also reduce the ductility: 1) Cold work (Strain Hardening) 2) Reduce grain size (Strengthening by Grain Size Reduction) 3) Add other elements in solid solution (Solid Solution Strengthening) 4) Add second phase particles (Precipitation or Age Hardening) • These mechanisms may be combined. • For example‚ the world’s strongest structural material (with
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26 2.3 Metal Forming Valery Marinov‚ Manufacturing Technology SHEET METALWORKING Classification of Sheet Metalworking Processes Basic sheet metalworking operations: (a) bending‚ (b) drawing‚ and (c) shearing; (1) as punch first contacts sheet and (2) after cutting. Force and relative motion are indicated by F and v Cutting Operations Shearing Shearing is a sheet metal cutting operation along a straight line between two cut-ting edges by means of a power shear. Shearing
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actually look like. The question arises because many people are not yet familiar with it‚ especially if their wisdom teeth have never erupted yet. So what do wisdom teeth look like? And are they any different from regular teeth? What do wisdom teeth look like? A lot of people are questioning what does a wisdom tooth look like and be surprise to know that it is actually the same as with our other regular teeth once it erupts correctly. However‚ problems with wisdom teeth may lead to different distinction
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AT A GLANCE HINDUSTAN COPPER LIMITED KHETRI COPPER COMPLEX KHETRINAGAR KHETRI COPPER MINE Mine Started: - Oct. 1964 1- Ore Body (a) Strike Length 4.80 Km (b) Average Width 10 metres (c) Average Dip 65 deg. (d) Average Grade 1.37 % 2- Ore reserves of Khetri Mine Reserve of Khetri Block : 34.11 Million Tons‚ Grade1.13% Reserve of Banwas Block : 25.39 Million Tons‚ grade 1.69%
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chemical qualities of copper ‚ by using many solutions that enable copper to undergo chemical changes that will take copper from a metal back to its original state. This is done using cooper‚ Concentrated HNO3‚ 6 M NaOH ‚ Bunsen burner‚ 6 M H2SO4‚ Mg ribbon‚ and two test tubes. The techniques used in this lab which is cleaning glassware‚ disposing of chemicals ‚ measuring mass ‚ centrifugation ‚ venting gases‚ and test tube over a “cool” flame. Introduction: Copper is an amazing metal that exists in almost
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determine whether or not a chemical reaction occurred after the mixing of various chemicals. The evolution of a gas‚ the formation of precipitation‚ and the change of temperature or color are all indicative of a chemical reaction. It was assumed that a reaction did not take place if the mixture of chemicals exhibited none of these characteristics. Several precipitation‚ complex-ion formation‚ redox‚ and acid-base reactions were performed. Redox: Decomposition Reactions In a 13 x 100 mm test tube‚ 2 mL
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