‘Kinetics’ is the study of chemical reactions. The speed of a reaction can vary depending on many variables such as the nature of the reactants‚ particle size‚ concentration and temperature. For a chemical reaction to occur‚ there must be a collision between reactants. The reaction rate is slower when the reactants are large and complex molecules because it takes longer for the molecules to combine together creating a chemical reaction. More than 2000 years ago‚ Democritus‚ who was a philosopher
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sleep times 6‚ 7‚ 8 hours on reaction time (seconds) in humans?” concluded that the group sleeping six hours had an average reaction time of 0.54 seconds‚ the group sleeping seven hours had an average reaction time of 0.60 seconds‚ and the group sleeping eight hours had an average reaction time of 0.45 seconds. The hypothesis was somewhat supported with the group sleeping eight hours having the highest reaction time‚ however‚ the group sleeping seven hours hours had a slower reaction time than those
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Reaction on Reaction Paper The first thing that came to my mind when I have heard about Reaction paper is “What exactly is it?” and before I get an understanding of that‚ I resisted that change. But later‚ when I have studied about it and understood its purpose‚ I have started thinking “Why people avoid change at the first look without an analysis?” The general human tendency is to live in a comfortable zone in which he has lived for quite some time. He draws a circle‚ thinks that circle is his
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Ashley Henderson 2/19/12 4B Written Report SCIENCE FAIR: Optical Illusions Can age affect the way people view optical illusions? Table on Contents ● Introduction ● Abstract ● Hypothesis ● Variables ● Materials ● procedures ● Data ● results ● conclusions ● research paper · Awknowledgements Introduction I. INTRODUCTION- Optical art is a style of art that was created in the 1960’s‚ it creates a series of movements‚ vibrations‚ and
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Some Factors that Affect the Rate of a Reaction BACKGROUND: Chemical reactions occur at different rates. In this experiment I will consider some of the key factors that influence the rate of a reaction: * nature of reactants - particle size * temperature * catalysts According to the collision theory‚ the rate of a reaction depends on the frequency of collisions between reacting particles. The more frequent the collisions‚ the faster the rate of the reaction. However‚ in order
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Age of children affect parents purchase decision: Purchasing decisions are also collaborative across product categories. Kids make decisions or decide with parents when it comes to: -Clothes/shoes (85%) - Fast food (85%) - Mobile phones (49%) - Vacations (56%) http://blog.viacom.com/2012/08/consumer-insights-nickelodeons-international-gps-kids-influence/ Social development theories also provide description of how children’s ability to understand different perspectives progress through a series
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How Enzyme Concentration can Affect Rate of Reaction The purpose of this investigation was to see how the concentration of an enzyme affected the rate at which a substance was broken down. We did this by using a white protein called casein. Casein is found in milk powder‚ it is a protein and used mainly as a binding agent in foods‚ because it is mad to proteins and joins to a phosphoric acid it belong to a group called the phophoproteins. In terms of in milk it is said to be healthier if it is
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Introduction “The Enzyme Reaction” An enzyme is a protein that acts as a catalyst‚ which brings out a biochemical reaction. A Catalase enzyme‚ the enzyme tested in this experiment‚ is found in almost all living organisms that are exposed daily to oxygen (such as fruits‚ vegetables and animals). Background Information The Catalase enzyme in this experiment is known for being less affective the warmer the temperature is. According to “Science fair projects” an enzyme becomes unstable
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factors of a chemical reaction affect the rate of reaction. This experiment focused on how temperature affects the rate of reaction for the reaction of alka-seltzer and water. The rate of a reaction is a value calculated to figure out how fast a chemical reaction occurs. There are three factors that can be changed that will affect the rate of a chemical reaction: surface area‚ concentration‚ and temperature. Temperature specifically affects the rate of a chemical reaction‚ because when the temperature
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Engana‚ Mary Gwen Stefani D. IA12117 Aug. 23 2013 Prof. Domingo Barcarse Reaction Paper We all have individual differences‚ as well as Ishaan in the movie that has dyslexia. He is a person that just cannot seem to get anything right in class but are more interested in his surrounding like in arts‚ animals and playing games. Though
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