A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electromagnetic force attraction between opposite charges‚ either between electrons and nuclei‚ or as the result of a dipole attraction. The strength of chemical bonds varies considerably; there are "strong bonds" such as covalent or ionic bonds and "weak bonds" such as dipole-dipole interactions‚ the London dispersion force and hydrogen bonding
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ReportTitle: Observations of Chemical ChangesDate: 9/9/13Name: Purpose: The purpose of this experiment is for the student to gain knowledge and experience regarding how avariety of chemicals react to one another. In addition‚ the student should also gain a betterunderstanding of the household chemicals that they use in their day to day lives.Procedure:Observe the chemical changes that occur by mixing a list of chemicals (provided in the lab manual).Add 2 drops of the first chemical into a well in the 96
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Victoria Chemicals: The Merseyside Project Executive Summary Victoria Chemicals is facing pressures from investors to improve its financial performances. The plant manager is currently considering whether to accept a GBP 12million initial outlay project to renovate its polypropylene production line at Merseyside plant. The benefit of the plant is the lower energy requirement of production and a greater manufacturing capacity. This report consist a recommendation for the plant manager which consists
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Midland Chemical Assignment Midland Chemical Co. is negotiating a loan from Manhattan Bank and Trust. The small chemical company needs to borrow $500‚000. The bank offers a rate of 8 ¼ percent with a 20 percent compensating balance requirement‚ or as an alternative‚ 9 ¾ percent with additional fees of $5‚500 to cover services the bank is providing. In either case the rate on the loan is floating (changes as the prime interest rate changes). The loan would be for one year. a. Which loan carries
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Tro’s Chemistry Chapter 13 – Chemical Kinetics Page 1 of 13 Acknowledgements: Many of the images are adopted from Tro’s textbook‚ the only purpose of which is to enhance student learning. Key terms‚ concepts‚ skills: Refer to pp 599 – 601. Review questions: 3 – 24. Suggested problems: 25‚ 27‚ 33‚ 39‚ 43‚ 53‚ 57‚ 59‚ 69‚ 73‚ 75‚ 81‚ 93‚ 103. 13.1 & 2 Introduction to the Rate of a Chemical Reaction • kinetics is the study of the factors that affect the speed of a reaction and the mechanism by
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Chemical Bonds Chemical Bond: is the force that holds atoms together in a compound. They form because they lower the potential energy of the charged particles that compose atoms. Chemical bonds can be broadly classified into two types: Ionic and Covalent. Ionic: metal & nonmetal Metals have a tendency to lose electrons and nonmetals have a tendency to gain them. The metal atom becomes a cation and a nonmetal becomes an anion. The oppositely charged ions attract one another and form an ionic
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CHEMICALS IN COSMETICS (OVERVIEW) FACTSHEET A cosmetic is a substance or preparation that is designed to be used on any external part of the human body – including in the mouth – to change the odours of the body‚ to change its appearance‚ cleanse it‚ keep it in good condition‚ perfume it or protect it. Cosmetics include soap‚ shampoo‚ moisturiser‚ hair dye‚ perfume‚ lipstick‚ mascara and many other products‚ but do not include products regulated as therapeutic goods (medicines). Cosmetics are made
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The test result is easier for the patient and caregiver to understand and relate to their daily activities. 4 Item Dynamic Gait Index The Dynamic Gait Index (DGI) is a functional screening test used to measure the mobility performance (Matsuda‚ Taylor‚ & Shumway-Cook‚ 2015). This test identifies gait responses to changing demands in patient with balance and
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Chemical Warfare Diyora Shukurova Period 1 06-05-2014 Chemical warfare is known as the “use of toxic chemicals in battle.” Chemicals have been used for battle throughout centuries. But also known as any toxic chemical which is deadly or can cause injuries. For example‚ poisoned arrows‚ boiling tar‚ arsenic smoke and noxious fumes‚ and there are many more. Chemical weapons were first used in 1915. The germen military was the first to release 168 tons of chlorine gas at Ypres and Belgium which caused
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1. You don’t have to be a chem whiz * Chemical engineering requires a basic understanding of chemistry‚ physics‚ math. You’re not required to memorize formulas‚ it’s more important to understand the principles and learn how to apply them to solve a problem/improve status quo. However after a few semesters‚ your brain WILLremember many formulas! * You do need to be analytical and have the ability to think critically. You must be able to look at the problem from a bigger viewpoint but
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