on the Rate of Reaction? By : 22/10/2013 The effect of changing the surface area on the rate of reaction? Unit Question: Should we speed things up or slow them down? Hypothesis: According to collision theory‚ should the surface area increase the amount of collisions increase increasing the rate of reaction. Therefore‚ my hypothesis is that when the surface area increases the rate of reaction increases.
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The Effect of Electrolysis On the Height Increase Rate Of the Palay Plant A Scientific Investigatory Project Presented to the Faculty of the University of St. La Salle Integrated School Bacolod City In Partial Fulfillment of the Requirements of the Subject Science 10 Chemistry By: Ablan‚ Victor Emmanuel P. De la Peña‚ Percival A Penado‚ Keith Nealson M. Puey‚ Patrick Anthony A. Villamor‚ Rex John Theodore Y. 10E i i Acknowledgement In this study‚ the researchers were
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Concentration The Problem In many colleges over 8% of the students report problems concentrating on their studies. Most of these students blame outside distractions for their problems. Many research studies manipulating noise levels and distractions have found that such disturbances may increase‚ decrease‚ or not even affect concentration. These researchers have therefore concluded that distracters don’t cause concentration problems directly. It is the way the distracters are interpreted
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China‚ as a growing world power‚ has a significant impact on the global economy. An eventual downturn of its market will lead to dramatic consequences for the economy on national and world-wide level. As the country with the highest IT goods export rate‚ its failure will lead the global community to a larger poverty gap‚ less investment‚ less technology: a stagnant economy. Due to its mixture of cheap labour‚ low living standard‚ undervalued currency‚ China has become a remarkable economic engine
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Aim It is to tell how the reaction between magnesium and hydrochloric acid will be effected if we change the concentration of hydrochloric acid. Introduction In the experiment the magnesium reacts with the hydrochloric acid to create magnesium chloride and hydrogen. The balanced formula for this is: Mg(s) + 2HCL(aq) MgCl2(aq) + H2(g) Magnesium + hydrochloric acid Magnesium Chloride + Hydrogen Magnesium will react with hydrochloric acid‚ because it is higher in the reactivity series than hydrogen
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Effects of Particle Size‚ Temperature‚ Concentration‚ and a Catalyst on Reaction Rate Introduction: Chemical reactions can be affected by a number of different factors. Particle size‚ temperature‚ concentration of a solution‚ and catalysts play a big role in the rate of reaction‚ they determine how fast a reaction will occur. According to the collision theory‚ the rate of reaction depends on the frequency of effective collisions between particles. Every reaction is different in that they all require
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Leaving the euro: A practical guide 4 June 2012 A revised submission for the Wolfson Economics Prize MMXII by Capital Economics Lead author: Roger Bootle Capital Economics Limited‚ 150 Buckingham Palace Road‚ London. SW1W 9TR Telephone. +44 (0)20 7823 5000 e-mail: roger.bootle@capitaleconomics.com Registered Office: As above. Registered in England No. 2484735 VAT No. GB 713 8940 25 Leaving the euro: A practical guide CONTENTS 1 Introduction ............................
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The effect on rate of an enzyme catalysed reaction by different objectives which include effect of substrate‚ temperature‚ ph and effect of a competitive inhibitor phosphate ions. This is determined by the reaction of hydrolysis by p-nitrophenylphosphate (PNP) as a substrate by the enzyme phosphatase. Abstract The hydrolysis of p-nitrophenyl phosphate has been studied in human red blood cells. To see if hydrolysis was related to the functioning of the sodium pump. Acid phosphatase catalysis’s
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An investigation to see how much oxygen is given off when different concentrations of catalase are added with hydrogen peroxide. Aim: To see if changing the concentration of catalase (found in celery) with hydrogen peroxide affects the amount of oxygen given of. Background Information: (Hydrogen peroxide - H2O2 1/2O2+H2O) Enzymes: Hundreds of chemical reactions happen simultaneously inside living cells and it’s the job of enzymes to control and regulate the various metabolic
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Group No. Date: Leader : Section: Members: Experiment no: 1A Data and Results: Initial Temperature: To = 25 degrees Celsius Final Temperature: Tf = 100 degrees Celsius Rod | Initial length | Change in Length | Coefficient of Linear Expansion(Exp) | Coefficient of Linear Expansion(Theo) | % Error | Steel | 40 | .035 | 1.17 x 10 / C | 1.1 x 10^-5/ C | 6.36% | Copper | 40 | .055 | 1.8 x 10 ^-5 /C | 1.7 x 10^-5 /C | 5.88% | Computation : Conclusion: 1. A bemetalli
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