Properties and Reactions of Hydrocarbons Abstract Introduction Hydrocarbons are organic materials that contain only carbon and hydrogen atoms‚ these molecules can be saturated or unsaturated and acyclic‚ cyclic‚ or aromatic. In this experiment we used a variety of methods to examine the physical and chemical properties of hydrocarbons. The first experiment we tested a variety of solvents to see if they dissolved our alkane (Decalin). One would expect that non-polar solvents will dissolve
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MECHANISMS Definitions and Terminology 1. Introduction The subject Theory of Machines may be defined as that branch of Engineering-science‚ which deals with the study of relative motion between the various parts of a machine‚ and forces which act on them. The knowledge of this subject is very essential for an engineer in designing the various parts of a machine. 1.1 Sub-divisions of Theory of Machines The Theory of Machines may be sub-divided into the following four branches: 1. Kinematics
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Well my paper is on pneumonia. The little I do know about pneumonia is that it is caused by an infection. You can recover from pneumonia with the right treatment. Pneumonia is more serious with people with weak immune systems. But to further my knowledge on pneumonia I did some research. What is pneumonia? Pneumonia is a common lung infection caused by bacteria‚ a virus or fungi. The infection inflames your lungs’ air sacs‚ which are called alveoli. The air sacs may fill up with fluid
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Investigation How does the concentration of the sodium thiosulfate affect the rate of reaction to hydrochloric acid? contents page 1: contents‚ aim‚ prediction‚ equation‚ diagram page 2: equipment‚ preliminary experiments page 3: page 4: page 5: page 6: page 7: page 8: Aim: In my investigation I am trying to find out how the rate of reaction between sodium thiosulfate and hydrochloric acid gets affected but the concentration of the thiosulfate. Prediction: My prediction is that the increased
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Defense Mechanisms Every person copes with difficult situations or threats in life in different ways. Sigmund Freud said that although defense mechanisms prevent apprehension and or guilt in the short run‚ they drain a person’s energy and actually causes the problems in a person’s life to worsen eventually. People use defense mechanisms every day without even realizing it. Four defense mechanisms include denial‚ rationalization‚ repression‚ and displacement. Suppose a woman has been in a serious
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Lecture 5 Lizan A. Majeed Reading Paragraph Purpose Each paragraph in a text has a clear purpose. For example: The first paragraph introduces the topic‚ states the purpose of the text‚ or describes a problem or situation. The body paragraphs develop arguments‚ try to persuade‚ suggest solutions‚ or describe developments. The final paragraph concludes‚ evaluates‚ or discusses consequences. Identifying the purpose of each paragraph helps you understand the text and decide where
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Acetylsalicylic Acid September 15‚ 2005 September 23‚ 2005 OBJECTIVES The objective of this lab experiment is to prepare aspirin (acetylsalicylic acid) by reacting salicylic acid and acetic anhydride. INTRODUCTION This purpose of this lab was to prepare aspirin using its basic components: salicylic acid and acetic anhydride. Salicylic acid and acetic anhydride‚ along with an acid catalyst‚ react to form acetylsalicylic acid (aspirin) and acetic acid. In this reaction‚ the hydroxyl group
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concept of exchange rate mechanism may be explained as the technique employed by the governments in order to manage and control their respective currencies in the context of the other major currencies of the world. There are 5 exchange rate mechanisms established which each of it is meant to be followed by government regarding to the management and determination of exchange rate in regards of the foreign exchange market and foreign currencies. These 5 exchange rate mechanisms consist of namely free
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Antikythera Mechanism is a piece of history that most people don’t know exists. It is a very complex device that was used on a cargo ship. This artifact was in the wreckage of a cargo ship nearly 2‚000 years ago. The Antikythera Mechanism was a device used very frequently on the cargo ship long ago. It was very useful to the men on the ship because it helped them know what time of the year it is or where they were. Antikythera Mechanism works in a few different ways. This device is very thin
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Perkin Reaction: Synthesis of (E)- and (Z)-Phenylcinnamic acids Thusanth Jogarajah‚ Dr. Lana Mikhaylichenko * Department of Physical and Environmental Sciences‚ University of Toronto Scarborough‚ 1265 Military Trial‚ Scarborough‚ ON‚ M1C 1A4 Received: February 6‚ 2013; E-mail Thusanth.Jogarajah@mail.utoronto.ca Abstract – Add text here Introduction: The name of this reaction is called the Perkin’s reaction. The reaction was first used by William Perkin to create phenylcinnamic acids (Johnson)
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