happens in a chemical reaction. The equation identifies the reactants (starting materials) and products (resulting substance)‚ the formulas of the participants‚ the phases of the participants (solid‚ liquid‚ gas)‚ and the amount of each substance. Balancing a chemical equation refers to establishing the mathematical relationship between the quantity of reactants and products. The quantities are expressed as grams or moles. Balancing equations is a fundamental skill in Chemistry. Steps in balancing
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Why be Drug Free DRUG FREE I choose to be DRUG FREE for many reasons. In fact‚ I have several reasons why I am drug free. My first reason is because I can get diseases like emphysema‚ lung cancer‚ and liver disease. My second reason is because drugs affect the brain. My final reason is that drugs can cause a lot of harm to oneself and those around them. “Now join me as I explain my reasons”. My first reason is because you can get diseases like emphysema‚ lung cancer‚ and liver
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Argon (Ar) is a noble gas found in Group 0 on the periodic table. It gets its name because of its chemical inertness and comes from the Greek root ‘Argo‚’ which means lazy. This is because Argon doesn’t react well with other elements. The atomic number of Argon is 18 making it a member of the helium group of elements which are also called noble‚ or inert‚ gasses and are non reactive. Its electronic configuration is: 1s2 2s2 2p6 3s2 3p6 The outermost shell‚ shell number three‚ has a completely
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Practice problems Chapter 6 Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which one of the following is correct? A) ν ÷ λ = c B) ν = cλ 1) C) νλ = c D) λ = c ν E) ν + λ = c 2) The photoelectric effect is __________. A) a relativistic effect B) the ejection of electrons by a metal when struck with light of sufficient energy C) the darkening of photographic film when exposed to
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PE R SP EC TI V ES O N P SY CH O L O G I CA L S CIE N CE Free Will in Scientific Psychology Roy F. Baumeister Florida State University ABSTRACT—Some actions are freer than others‚ and the difference is palpably important in terms of inner process‚ subjective perception‚ and social consequences. Psychology can study the difference between freer and less free actions without making dubious metaphysical commitments. Human evolution seems to have created a relatively new‚ more complex form of
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take place inside food determine its nutritional value‚ taste‚ texture and freshness. Like any other organic material‚ food can decompose over a period of time. The importance of food chemistry lies in its ability to counter the effects of decomposition and spoilage and extend the shelf life of foods. Food chemistry is a science that studies the chemical processes that take place in food. All food products are made of biological materials that react and interact in different ways‚ and under different
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between the Diffusion Rate of a Substance and its Molecular Weight ABSTRACT To test the effect of molecular weight on the rate of diffusion‚ various experiments were performed. One of which is the glass tube test wherein cotton balls of the same size were moistened in two different substances (NH4OH and HCl). These cotton balls were plugged at each side of a glass tube. After some time‚ formation of a white ring occurred. The white ring‚ in fact‚ is a product of the reaction between the molecules
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1. Introduction This is an individual coursework for the Information and Content Management course taught by Dr Ray Stoneham. The aims of this coursework are to critically evaluate the implementation and management of security in Enterprise Content Management Systems; appraise the legal‚ ethical and social aspects of web-based systems and to critically evaluate quality assurance in Content Management Systems. Task 1 is to evaluate costs and benefits of SharePoint‚ compared with two other open
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Scuba diving is a form of underwater diving in which a diver uses a scuba set to breathe underwater. According to the Professional Association of Diving Instructor (PADI)‚ a “DEEP DIVE” is considered to be anything from 18 meters (60 ft) to 30 meters (100 ft). A scuba diver moves around underwater by using swim-fins attached to the feet‚ however external propulsion can be provided by a diver propulsion vehicle. Scuba diving may be performed for a number of reasons; either for recreational purposes
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FINAL SUMMATIVE PRESENTATIONS This evaluation will involve working in groups of 3 to prepare a written report‚ poster and a demonstration of food preparation of your chosen topic. PART A: WRITTEN REPORT This should give the reader background information on your selected topic. This information will be shared with the class as an ongoing commentary in addition to your demonstration. The report will be typed using proper report format with a title page and subheadings. It should
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