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{draw:g} Table of Contents 3… Abstract 4… Literature Review 7… Hypothesis 8… Materials 9… Procedure 10… Results 12… Analysis of Data 13… Conclusion Abstract Literature Review In Chemical Kinetics in the field of Chemistry, the Collision Theory plays a large role. The theory states that the more collisions that occur in a system, the more likely combinations of molecules will happen. Also, more collisions means more combinations of molecules to occur which will consequently speed up the reaction and the rate of reaction (Bursten 492). Another factor in reaction rates in the concentration of particles. Similar to the Collision Theory, the more particles there are the greater chance there is to collide with one another. The more collision leads to more combination and a greater rate of reaction. In a system with a lower concentration of the substance, there is less chance of a collision and therefore a lower rate of reaction (Chem4Kids 1). Although temperature and concentration are the two big factors, there are still many other things can change the rate of reaction among molecules. Pressure, specifically for gasses, has an effect on reaction rate due to its effect on volume. Volume and pressure are inversely proportional; as volume decreases, pressure increases. Consequently, when volume is decreased and pressure is increased, the space where the molecules can move around is cut down which causes a greater concentration of molecules for that area. In addition, factors as simple as the nature of the substance can dictate changes in the rates of reaction (Blauch 1). Alka-Seltzer was chosen for this experiment based on its properties which allow for a fast chemical reaction. The fizzling that occurs is the result of the chemical reaction going underway. Based on its relative ease of use and clear depiction of reaction rates, Alka-Seltzer was an idea choice as the substance to be tested. The chemical reaction pathway of the Alka-Seltzer as done in my


Bibliography: "Alka-Seltzer Rates of Reaction." Alka-Seltzer -- Alka Seltzer Plus. 02 Feb. 2009 http://www.alka-seltzer.com/as/experiment/student_experiment.htm. Blauch, David M. "Chemical Kinetics: Reaction Rates." The Chemistry Department @ Davidson College. 02 Feb. 2009 http://www.chm.davidson.edu/ChemistryApplets/kinetics/ReactionRates.html. Bursten, Bruce E. Chemistry : The Central Science. Upper Saddle River: Pearson plc, 1996. "Chem4Kids.com: Reactions: Rates of Reaction." Rader 's CHEM4KIDS.COM. 02 Feb. 2009 http://www.chem4kids.com/files/react_rates.html. Foglino, Paul. Cracking the AP Chemistry Exam. Princeton: Princeton Review, 2007.

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