Science Fair Research Paper My Science Fair topic is about silly putty and how it is made. Chemical reaction‚is the process by which one or more substances are converted into one or more different substances.Old bonds break and new bonds form. The original substances are called reactants. The resulting substances are called products. It is a simple chemical reaction. Another simple reaction might involve a reactant molecule breaking apart. Many enduring substances such as rock and water are highly
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reactant. Watch as both reactant and product reach a state of balance. No pressure greater than one another. Collision model provides characteristics of chemical reaction. Molecules must collide in order to react; and Characteristics such as higher concentrations‚ high temperature‚ etc. plays the role of increasing the speed of reaction or having more collisions. Scientists use collision model to understand why some molecules react and some do not. Also see how strong collision can break the bond
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Conclusion: The result matches the prediction‚ as the height of the ramp increase‚ the speed of the toy car roll down on the ramp will increase because of the gravitational force pull the toy car down on the ramp‚ the higher height the toy car roll down on the ramp‚ the more gravitational forces involved‚ so the toy car will get a faster speed‚ but in the contrary‚ the lower height the toy car roll down on the ramp‚ there is less gravitational force‚ that’s mean the toy car will get a slower speed
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Introduction: According to chemists‚ hydrolysis is defined as the breaking of a compound involving a reaction with a water molecule. The goal of this experiment is to three-dimensionally show how disaccharides are transformed into monosaccharides using an acid-catalyzed hydrolysis reaction. For the purpose of this lab‚ it is quite useful to fully understand the following terms: optical rotation and carbohydrate. Optical rotation is measured by a polarimeter‚ which measures the polarization of light
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Structure: Enzymes are globular proteins that act as catalysts‚ they have a specific 3D shape that is the result of their amino acid sequence. There is a specific region of the enzyme that is functional‚ this is called the active site. The active site is made up of a small number of amino acids and forms a small depression within the larger enzyme molecule. Moreover‚ the molecule that the enzyme acts upon (substrate) fits precisely into the depression and forms an enzyme-substrate complex. The substrate
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during a chemical reaction‚ limiting the amount of product that is produced. *Excess Reactant: A reactant that remains after a reaction is over. *Theoretical Yield: The amount of product that is predicted by stoichiometric calculations *Actual Yield: The amount of product that is recovered after a reaction is complete. *Percentage Yield: The actual yield of a reaction‚ expressed as a percentage of the theoretical yield. The equation for calculating the percent yield of a reaction is: Percentage
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Henry-Louis Le Chatelier‚ “proposed one the central concepts of chemical equilibria.1” Henry was best known for his principle‚ properly name Le Chatelier’s principle. The principle allows one to “predict the change of conditions will have on a chemical reaction.3” His finding of this principle came from his early work in the experimental study of thermodynamics.3 Le Chatelier’s principle states what will happen to a system if a condition such as concentration‚ temperature‚ or pressure moves the system away
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The Relationship between Reactants and Products Introduction In a chemical reaction‚ the amount of starting material for a chemical reaction limits the amount of product that can be formed.1 The principle of limiting reactants relates to this lab because the limiting reactant is the substance that is used up first in a chemical reaction. The amount of product was limited by that reagent. The excess reactants were considered to be the other reagents that were presented in excess of the quantity that
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Introduction: Enzymes are a substance produced by a living organism that acts as a catalyst to activate a specific reaction. The purpose of this experiment was to figure out if the temperature of the reaction would rise‚ will the absorption rise as well. Reactions use energy‚ If there is energy than heat occurs. The Hypothesis that was figured out was‚ If the temperature rises‚ then the absorption will also go up. The Independent variable that was tested was temperature. The dependent variable that
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initial rate of reaction. I will measure the effect of the enzyme in 5 different concentrations against the controlled variable of the reactant. The enzyme which will be used is different concentrations of potato and the reactant used will be Hydrogen Peroxide. Hydrogen Peroxide which will be the buffer solution is a PH of 7.2. My hypothesis for the experiment is that as the concentration of the enzyme is increased the rate of reaction will be increased‚ producing oxygen at a faster rate. The results
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