Hamad IS1‚ B4 Endothermic and exothermic reactions Background information: An endothermic reaction is a product or a substance accompanied by the absorption of heat. An exothermic reaction is a chemical reaction that releases heat. Design: Research question- Which reaction occurs‚ exothermic or endothermic‚ when Epson salt‚ Borax‚ Laundry detergent‚ and baking soda are added‚ separately‚ with water? Hypothesis- If Epson salt is mixed with water then the reaction will be endothermic because salt is used
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Chemical bonds are what make up the world. In bonds‚ elements are held together and form compounds that may have new physical and chemical properties. There are two main kinds of bonds‚ they ionic and covalent. In bonding the goal of the atoms involved is to reach a level of stability with less energy. In order to reach the epitome of stability‚ as in the case of noble gases‚ an atom strives to complete its outer shell. Either losing or gaining electrons may do this‚ which concludes in an ionic bond
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Chemistry Summary The particle theory: 1. Matter is made of tiny particles 2. Particles of matter are in constant motion 3. Particles of matter are held together by very strong electric forces 4. There are empty spaces between the particles of matter that are very large compared to the particles themselves. 5. Each substance has unique particles that are different from the particles of other substances 6. Temperature affects the speed of the particles. The
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Executive summary: We have prepared report is based on “Business Plan on “Smoothy Juice Company Ltd”. To prepare this report we have followed marketing research methodology for whose are children and diabetic people. The information‚ on which the total business plan stands‚ was the collection of data from the questionnaire made by Smoothy Juice Company Ltd. To see the market need and wants. The survey took place inside and outside of Dhaka. After analyzing questionnaires we made some plan about
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Wellness > Juice Detoxing Juice Detoxing is one of the detoxification practices of getting rid of the toxic and harmful substances in the body. It is very much prominent that is it promoted in different websites and endorsed by a number of celebrities. Juice detoxing has happened due to the premise that the body regularly acquires different unwanted chemicals and pollutants; hence‚ the need for regular cleansing through these juices to reduce the risk of getting serious illnesses. Detoxification
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Department of Chemistry Physical and Chemical Properties Submitted by Date Submitted: February 2‚ 2014 Date Performed: January 31‚ 2014 Lab Section: Chem-180 Course Instructor: Professor Spenser Purpose The purpose of this lab experiment is to observe physical and chemical properties of substances which
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Chemical changes are irreversible because substances mix and cause a reaction which creates a new substance. Chemical changes can be caused when a substance is combined with a heat‚ water or another substance. Heat can cause a chemical reaction called caramelisation which is when sugar is heated at a high temperature causing it to break down. This gives the sugar a nutty
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he terms “chemical accident” or “chemical incident” refer to an event resulting in the release of a substance or substances hazardous to human health and/or the environment in the short or long term. Such events include fires‚ explosions‚ leakages or releases of toxic or hazardous materials that can cause people illness‚ injury‚ disability or death. While chemical accidents may occur whenever toxic materials are stored‚ transported or used‚ the most severe accidents are industrial accidents‚ involving
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Observations of Chemical and Physical Changes Derrick Davis Lab partner: None Location: My house Date Performed 25 Feb 15; 1600 CHE111-CO2 Photo 1 (Photo of me properly wearing safety goggles holding the student information card) Abstract: In chemistry it is important to understand the difference between physical and chemical changes. The objective of this experiment was to perform tests using heat or chemical mediators and observe the results for any physical or chemical changes. Various
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Name: Zanya Hamilton Subject: principle of business School: St. Andrew High School for Girls Center Number: 100108____ Dated of submission: September _‚ 2013 TABLE OF CONTENTS Description of the business…………………………………………………………………. Justification of location…………………………………………………………………….. Selection of appropriate labour…………………………………………………………….. Sources of fixed and working capital………………………………………………………. Role of the entrepreneur……………………………………………………………………. Type of production…………………………………………………………………………
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