AbstractThe rates of reaction of Alkali metals and Alkaline Earth meatals are compared in this lab. The pH of each of the resulting metal solutions are tested and the products of the reaction between calcium and water is discovered. The tested elements are sodium‚ lithium‚ potassium and calcium and each of them were placed in a beaker filled with water. The resulting solutions pH levels were tested with litmus paper. There were more steps for caclium because it is the only Alkaline Earth metal. For calcium
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The speed of chemical reactions – class experiment By Julia Shuker Year 10 science – Miss Phillips – Term 2 – 2013 – Julia Shuker Aim The aim of the experiment was to investigate the factors that increased or decreased the speed of chemical reactions between two different chemical reactions. Hypothesis If certain factors‚ such as concentration‚ temperature‚ catalyst and surface area are increased then the reaction rate will also increase due to the particles
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Chemical reactions are the basis of life on earth. As human beings‚ we are little more than the naturally abundant elements of which we are composed and the reactions between the compounds that they form. After all‚ how could life exist without water? Oxygen transport in a body the size of the human body would be impossible without the aid of a complex like hemoglobin. Besides being the basis of many of life’s intangibles‚ chemistry also plays an active role in our daily lives. Take for instance
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introduced Metal Magnesium basic information included Metal Magnesium definition classification application industry chain structure industry overview; international market analysis‚ China domestic market analysis‚ Macroeconomic environment and economic situation analysis‚ Metal Magnesium industry policy and plan‚ Metal Magnesium product specification‚ manufacturing process‚ cost structure etc. Browse Complete report with TOC : http://www.qyresearchreports.com/report/global-and-china-metal-magnesium-industry-2013-deep-research-report
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Aim During this experiment I will be investigating if heating limestone and changing the concentration of the acid will affect the rate of reaction. Preliminary work Before doing our main experiment‚ we will have to conduct another experiment‚ to see what concentration of acid we will have to use. We done this using 0.1M‚ 0.5M and 1M of Hydrochloric acid‚ and 0.1g of powdered limestone‚ we used powdered limestone‚ as it would be a fairer test‚ I think this as all the particles of limestone will
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ANALYSIS On the first part of the experiment which is the determination of specific heat of metals. The obtained value of experimental specific heat of metal of aluminum and copper are 0.2152 calg-℃ and 0.0958 cal g-℃ ‚ respectively. It is a must to work faster in performing this experiment because working in an air-conditioned room greatly affects the result of the temperature. For the temperature values‚ the final temperature of mixture should not increase more than 1 ℃ compare
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------------------------------------------------- ------------------------------------------------- Mapua Institute of Technology ------------------------------------------------- School of Mechanical and Manufacturing Engineering ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- PHYSICAL STUDY NO.2 ------------------------------------------------- -------------------------------------------------
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409 Lab 40: Calorimetry Calorimetry is the measurement of the quantity of heat exchanged during chemical reactions or physical changes. For example‚ if the energy from an exothermic chemical reaction is absorbed in a container of water‚ the change in temperature of the water provides a measure of the amount of heat added. Calorimetry involves the use of a calorimeter. In this activity you will learn how the energy change in a physical change can be measured using a calorimeter. •
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10/30/17 Periodic Table Project Mrs. Foley: Period 1 Magnesium Magnesium is a major element. It’s the 7th ample element in the earth’s crust and the 8th most plenteous element in the universe and has diverse uses; some important and others impressive. Magnesium came from Magnesia‚ a district found in Greece. Magnesium was first discovered in 1755 by a scientist‚ Joseph Black. Black conducted an experiment in which he distinguished magnesium oxide from calcium oxide. It was later isolated by Sir
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determine the enthalpy of combustion of naphthalene by means of a bomb calorimeter. First‚ the bomb calorimeter was standardized using benzoic acid and the average heat capacity of the bomb calorimeter was calculated to be 10.60.3205 kJ/K. From that‚ the These results show that heats of combustions of unknown substances can be determined via bomb calorimetry. Introduction The first law of thermodynamics states that energy is conserved.2 Using that law it can be said that the change in the internal
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