the first to state this‚ but this is false. The first to state this was actually Jean Ray who had come up with a similar law. This law only became established after Lavoisier discovered it. Lavoisier produced his book Elementary Treatise on Chemistry. In this book he states the difference between a compound and an element‚ since so many people did not know the difference. This book also included the idea that light was a chemical element. He also stated in his book that there was a substance
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ry SL Chemistry Name______________________________________________ IB Guide to Writing Lab Reports Standard and Higher Level Chemistry 2010-2011 Table of Contents page 1 Explanations‚ Clarifications‚ and Handy Hints page 2 - 13 IB Laboratory Evaluation Rubric page 14 - 15 Formal Lab Report Format page 16 Error Analysis Types of Experimental Errors page 17 Error Analysis: Some Key Ideas page 18 Precision and Accuracy in Measurements A Tale of Four Cylinders
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6.1.1 If the reaction produces heat (increases the temperature of the surroundings) then it’s exothermic. If it decreases the temp (i.e. absorbs heat) then it’s endothermic. Also‚ the yield of an equilibrium reaction which is exothermic will be increased if it occurs at low temps‚ and so for endothermic reactions at high temperatures. 6.1.2 Exothermic : A reaction which produces heat. Endothermic : A reaction which absorbs heat. Enthalpy of reaction : The change in internal energy (H) through
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CHE 182 Chemistry in Art Fall 2013‚ CSB 222 Instructor: Professor Machczynski Email: machczym@newpaltz.edu Office Hours: CSB 217‚ T 1:00-5:00 pm Learning Outcomes By the end of this course‚ students will be able to: 1. Explain and predict the colors of objects by applying an understanding of how light interacts with matter. 2. Explain how chemical structure determines the properties of materials and apply this principle to optimally select and use a variety of artistic materials. 3. Delay their
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After revolutionizing chemistry‚ naming elements‚ discovering combustion and respiration‚ Antoine Lavoisier helped transform chemistry from a qualitative science into a quantitative one. Antoine Lavoisier was born on August 26‚ 1743 in France’s Capital‚ Paris. Antoine’s father was Jean-Antoine Lavoisier‚he was a lawyer in the Paris Parliament while his mother‚ was Émilie Punctis‚ and her family wealth had come from a butchery business. Antoine’s mother died while he was five leaving him a large inheritance
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Project 1: Polymer Ball Vivian Kim General Chemistry 2045L Introduction Our assignment in this project was to create a bouncy ball for a company using polyvinyl alcohol (PVA)‚ polyvinyl acetate solid and sodium borate‚ by varying the ration of ingredients and to determine the best recipe for our bouncy ball. The company chose the materials because of their odorless and nontoxic properties. PVA is a water-soluble synthetic polymer and has adhesive properties
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Chemistry 2: Organic and Inorganic Chemistry Activity 1 PROPERTIES OF ORGANIC COMPOUNDS (Sugar) Rainbow Density Column Introduction As a chemical term‚ “sugar” usually refers to all carbohydrates of the general formula Cn(H 2O)n‚ an organic compound. This exercise is focus on sugar as an organic compound and its properties. Objectives: 1. To identify the properties of organic compound - sugar. 2. To observe some physical properties and changes on an organic compound during the actual conduct of
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Science Research Paper Joseph Priestly‚ was one out of many of the famous fathers of chemistry. One day he had stumbled across photosynthesis‚ which is involved with the discovery of oxygen‚ he was one of the most colorful and influential scientists of the eighteenth Century. He was born in Birstal Fieldhead on March 13th 1733 and was the son of a cloth dresser. He was raised by his aunt because his mother died when he was 7. He spent most of his life as a preacher and teacher. For his work in
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The average University student has many tasks to accomplish and much studying to do while combating the onslaught of sleep. Students at the University of the West Indies Mona are no different and recommended amongst themselves a highly rated and popular health supplement “Yeast-Vite” [8]. Yeast-Vite is a health supplement pill which helps people fight fatigue and improve alertness. The active ingredients in Yeast-Vite are caffeine‚ vitamin B1‚ vitamin B2‚ vitamin B3. The other ingredients are:
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Investigation 4.2: Factors Affecting Viscosity Question How does changing the temperature (°C) of glycerin affect the viscosity s -1 of glycerin (l)‚ when tested by dropping a marble from a constant height into the glycerin (l) and timed with a stopwatch until the marble hits the bottom? Design Independent Variable: The independent variable of this experiment is the temperature (°C) of the glycerin (l). Dependent Variable: The dependent variable of this experiment is the viscosity s -1 of the glycerin
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