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Abstract My science median(a) project was to demonstrate and study exothermal answer rates. Exothermic chemical reactions ar reactions that produce and releases energy in the form of vex. The purpose of this essay is to study how changing directs of classify O can affect exothermic oxidation. For the first experiment, I utilize water and atomic number 20 chloride pellets. atomic number 20 chloride is a chemical meld made up of atomic number 20 and chlorine. The formula for calcium chloride is CaCl2. When feature with water, large amounts of heat are given off. This can puzzle the water to boil. The product of the calcium chlorides reaction to water is calcium hydroxide and chlorine gas. The reaction rate for my science fair project is simple. It is defined by the lawfulness of mass action. This law states that the rate of the reaction is the comparable to the molecular concentrations of the reacting substances. This means that if the level of oxygen is increase, t he rate of the reaction willing similarly increase. This would also mean that the amount of heat produced would increase. The procedure of the first experiment was that I measured out 12 ml of calcium chloride pellets into a beaker and poured them into a gradational cylinder. Then, I combined the calcium chloride with 5 ml of water.

I then watched the temperature on the thermometer go up as I enter the time and temperature either five aids. My hypothesis is that the temperature will increase 1° Celsius each 15 seconds during the first 2 minutes. In conclusion, I show that my hypothesis was proven to be wrong . The temperature for each trial increased b! y at least .1° Celsius both(prenominal) 5 seconds for every 2 minutes recorded. The lovely temperature for the first trial was 36.05° Celsius. The average temperature for the second trial was 40.14° Celsius. The highest temperature recorded for the first trial was 40.4° Celsius. The highest temperature for the second trial was 43.9° Celsius. The average temperature for both trials is 38.095° Celsius or 100.571°...If you want to motor a full essay, roll it on our website: OrderCustomPaper.com

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