The purpose of the lab was to find out the chemical elements based on the color of the flame that elements make by their reaction. The work we completed in the lab was testing the chemical effects of the flame from the chemicals. We tested different elements and wrote down our observations. I accomplished the knowledge of testing chemicals and making responses based on our observations.Electrons are the particles found in the chemicals that may be responsible for the production of colored light.
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Behavior of Gases and Absolute Zero Determination Lab Report Experiment 4 Introduction In this experiment we measured the relationship between temperature‚ volume‚ and pressure. Objectives: Conduct a set of experiments‚ each of which illustrates a gas law. Gather data to identify the gas law described by each activity. Complete the calculations necessary to evaluate the gas law in each activity. From your results‚ derive a single mathematical relationship that relates pressure‚ volume‚ and
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Good evening class. Welcome to our version of Acco 400. Our assigned topic is chapter 4 – efficient market securities. We will be asking questions throughout our presentation and we have prepared a small pop quiz at the end to help get you some participation marks. And I’ll start by introducing our group to the class. My name is Kristina this is Chris‚ Yuanhao‚ Johnathan and Victoria. Here’s a Brief overview of what we will be talking about…. Now let’s begin the lecture…..chris the floor
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Chapter 4 Process Costing Chapter 4 Process Costing Solutions to Questions 4-1 A process costing system should be used in situations where a homogeneous product is produced on a continuous basis. 4-2 Job-order and processing costing are similar in the following ways: 1. Job-order costing and process costing have the same basic purposes—to assign materials‚ labor‚ and overhead cost to products and to provide a mechanism for computing unit product costs. 2. Both systems use the same basic
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Introduction – Lab Report What is a Chemical Reaction? A chemical reaction is a change in matter that produces one or more new substances. A chemical change or reaction occurs when bonds are broken and new ones are formed. The formation and dissolution of these bonds are dependent upon environment changes. Even without the usage of microscopes‚ chemical reactions are usually apparent to the naked eye. The two main kinds of changes that one can observe are the formation of new substances and changes
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anthracene from benzyltriphenylphosphonium chloride and 9-anthraldehyde through the reaction mechanism recognized as the Wittig Reaction. The Wittig Reaction allows the chemist to synthesize phosphoranes in the lab with relative ease. A more recent and inexpensive version of the reaction is the Wittig-Horner reaction (1). ABSTRACT Georg Wittig was a German chemist and Nobel Prize winner in 1979 for the Wittig reaction (1). He was born in Berlin‚ on June 16‚ 1897‚ and died August 26‚ 1987 (1). Wittig
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CHAPTER 4 PRESENTATION‚ ANALYSIS AND INTERPRETATION OF DATA This chapter presents the analysis and interpretation of data gathered out of the instruments used in the study‚ and is presented according to the specific problem sited in chapter 1 and should present the answer to the test of the hypotheses. The result of the study is presented using the tabular presentations (use of statistical table)‚ graphical presentation (use of graphs)‚ and textual presentations (use of statements or sentences)
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The purpose of this experiment was to synthesize triphenylmethanol from a Grignard reagent. The Grignard reaction technique was used in this synthesis but due to the fact that it is such a strong nucleophile and base‚ it was important to prevent water from interfering with the Grignard reaction. Purity of the product was determined by measuring the melting point. Reagent Table: Structure Name Molecular formula Molar mass Density Melting point Boiling Point Diethyl ether C4H10O
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Name______________________________ Class __________________ Date ______________ Chapter 4 Ecosystems and Communities Section 4–1 The Role of Climate (pages 87–89) This section explains how the greenhouse effect maintains the biosphere’s temperature range. It also describes Earth’s three main climate zones. What Is Climate? (page 87) 1. How is weather different from climate? Weather is the day-to-day condition of Earth’s atmosphere at a particular time and place
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Chapter 3 #2 - When is a company’s competitive advantage most likely to endure over time? A company’s competitive advantage is most likely to endure over time when the company has built barriers to imitation‚ which make it difficult for a competitor to copy the company’s distinctive competencies. Another element needed is the ability to quickly react to changes in the customer’s needs and have a high absorptive capacity in order to identify‚ value‚ assimilate‚ and use new knowledge. Lastly‚ the
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