Organic Food Once found only in health food stores‚ organic food is now a regular feature at most supermarkets. And that’s created a bit of a dilemma in the produce aisle. On one hand‚ you have a conventionally grown apple. On the other‚ you have one that’s organic. Both apples are firm‚ shiny and red. Both provide vitamins and fiber‚ and both are free of fat‚ sodium and cholesterol. Which should you choose? The word "organic" refers to the way farmers grow and process agricultural products‚ such
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compare which part of salt is responsible for the colour change of the flame. Q3: Suggest why flames on gas stove burn orange-yellow when a small amount of water boils over onto them? This is due to the chemicals present in the water; such as sodium chloride‚ calcium ion. The orange-yellow flame admitted could also be due to
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unlike at the taste. By adding flavorings‚ it can be used by everyone in the family. D. Definition of Terms • Sodium Bicarbonate – Baking Soda • TRPM8 – Transient receptor potential cation channel subfamily M member 8 also known as the cold and menthol receptor 1‚ is a protein. TRPM8 is an ion channel‚ upon activation it allows the entry of Na+ (sodium) and Ca2+(calcium) ions to the cell that leads to depolarization and the generation of an action potential. This eventually
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Organic Compounds Marilena Tagritzis 11-A Mr. Daniel Chemistry May 10‚ 2011 Organic Compounds An organic compound belongs to gaseous‚ liquid‚ or solid chemical compounds whose molecules contain carbon. Some types of carbon that contain compounds such as carbides‚ carbonates‚ and oxides of carbon and cyanides are sometimes classified as inorganic. AllotropesHYPERLINK "http://en.wikipedia.org/wiki/Allotropes_of_carbon" of carbon such as diamond and graphite may also be classified as inorganic
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KNES 470 Dr Rubin 4-18-12 Sodium Bicarbonate and Boxing Performance Boxing is a sport which relies on anaerobic power since it contains short-duration and high intensity work. A typical boxing match today consists of 3 minute rounds with a 1 minute seated recovery rest. When an athlete performs exercise at maximal level for more than 30 seconds‚ most of the energy comes from anaerobic glycolysis. During this process‚ lactic acid is produced which causes a decrease in pH levels within the muscle
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I. Grade Level/Unit Number: 9-12 Unit 7 II: Unit Title: Mole Concept III. Unit Length: 7 days (on a 90 min. per day block schedule) IV. Major Learning Outcomes: Students should be able to: Mole Concept • Calculate formula mass. • Convert representative particles to moles and moles to representative particles. (Representative particles are atoms‚ molecules‚ formula units‚ and ions.) • Convert mass of atoms‚ molecules‚ and compounds to moles and moles of atoms
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Chemistry Gen: Course Description Year 2 PART - II CGT 21a Unit I. Basic physical chemistry I * Gaseous state: Gas laws‚ kinetic theory of gas‚ collision and gas pressure derivation of gas laws from kinetic theory‚ average kinetic energy of translation. Boltzmann constant and absolute scale of temperature‚ Maxwell’s distribution law of molecular speeds (without derivation)‚ most probable‚ average and root mean square speed of gas molecules‚ principle of equipartition of energy (without
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AS LEVEL CHEMISTRY ASSESSED HOMEWORK Answer all questions Max 86 marks Name …………………………………………………………….. Mark ……../86 ……....% Grade ……… 1. The graph below shows the boiling points of some alkanes. (a) Draw a smooth curve through the points on the graph and estimate the boiling points of octane C8H18‚ ……………… hexadecane‚ C16H34 .……………… [2] (b) State how decane‚ C10H22‚ can be separated from a mixture of the alkanes. .......................................
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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Ordinary Level CHEMISTRY Paper 1 Multiple Choice May/June 2005 1 hour Additional Materials: Multiple Choice Answer Sheet Soft clean eraser Soft pencil (type B or HB is recommended) 5070/01 w w w e tr .X m eP e ap .c rs om READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples‚ paper clips‚ highlighters‚ glue or correction fluid. Write your name‚ Centre number and candidate number on the answer
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Introduction: The purpose behind (the first step in) this experiment is to show that similarly to week 1‚ the molarity of an acid or base in solution can be determined (so long as one value’s is known) using titration. In this case though‚ finding the molarity of the acid used in the reaction is then used to determine the percent of that acid in a vinegar solution and compared to the standard value for % acid present in vinegar. The second part of the experiment was to see if by titrating a solution
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