Introduction What is chemical change? Chemical change is the alteration of a substance into one or more different substances with different properties (also called chemical reaction). The four different types of chemial reations are synthesis‚ decomposition‚ single displacement‚ and double displacement. Synthesis is when atoms and/or molecules combine to form larger molecules. Decomposition is when a large molecules are split into elements or smaller molecules. Single Displacement has an element
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Organic Chemistry Laboratory Report. Experiment 1: Crystallization. Objectives: 1. To study the crystallization process. 2. To identify the best suitable solvent to use for the crystallization process. 3. Gain an experience in purifying an organic compound by the techniques of the crystallization. Introduction. Crystallization is a technique which chemists use to purify solid compounds. It is one of the fundamental procedures each chemist
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Public property is property which is owned collectively by the people as a whole. This is in contrast to private property‚ owned by a individual person or artificial entities that represent the financial interests of persons‚ such as corporations.[1] State ownership‚ also called public ownership‚ government ownership or state property‚ are property interests that are vested in the state‚ rather than an individual or communities.[2] [edit] Crown property In the modern representative democracy‚ "public
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Matter is made up and composed of atoms.These atoms have a core called nucleus.Atoms also have electrons orbiting around their nucleus.The core has positive charge while the electrons have negative charge.Rubbing causes unlike atoms to stick and unstick frequently. Atoms "fight" over electrons‚ and the stronger one gets to take the electron home.The triboelectric effect‚also known as triboelectric charging‚is a type of contact electrification on which certain materials become electrically charged
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Organic Food vs Non Organic Food In today’s society you walk into a grocery store and you always have the option of organic or non organic food. There are even grocery stores dedicated to organic foods like Trader Joe’s‚ Sprouts and Whole Food market. I personally have gone organic and will never go back to eating or drinking non organic food. Organic food may be pricey but less hormones‚ less cow puss and blood in your milk‚ and less pesticides. The controversies about organic food vs non organic
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Exercise No. 2 COLLIGATIVE PROPERTIES (Full Report) I. INTRODUCTION Colligative properties In liquid solutions‚ particles are close together and the solute molecules or ions disrupt intermolecular forces between the solvent molecules‚ causing changes in those properties of the solvent that depend in intermolecular attraction. For example‚ the freezing point of a solution is lower than that of the of the pure solvent and the boiling point is higher. Colligative properties of solution are those that
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How do the unique chemical and physical properties of water make life on earth possible? Heat Capacity the amount of energy required to raise the temperature of something one degree celcius Cohesive strength - The internal strength of the adhesive. The measure of a label’s resistance to removal. Surface Tension - the attraction of molecules to each other on a liquid’s surface‚ creating a barrier between the air and the liquid. Heat of Vaporization the
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ASEAN was created on August 8‚ 1967 by five founding members; Thailand‚ Indonesia‚ Singapore‚ Malaysia‚ the Philippines. Malaysian foreign minister Ismail Abdul Rahman said at that time: ‘we have to come to a profound shared realization that we will not be able to survive as independent nations for long…‚ unless we think and act at the same time as residents of Southeast Asia’ . At perilous times when the nation-states were pressurized into joining either one of the two major blocs‚ Southeast Asian
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Identify legal and ethical requirements of property management to complete agency work CPPDSM4007A Assignment 2 STUDENT NAME Daniel Skrzypek OTEN NUMBER n855096 Please read the “Guide to completing and submitting assignments” before you begin this assignment. What you need to do To successfully complete this assignment you must answer the following questions to demonstrate your knowledge. The assignment will be granted a result of “Competent” if the learning
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Organic Lab Part 2 Experiment 7: Diethyl n- Butylmalonate Lab Partner: Reference: Williamson K.L.‚ & Masters‚ K.M. (2011).”Diethyl n- Butylmalonate”. Macroscale and Microscale Organic Experiments ( 6th edition pp. 531-534)
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