Andrea Moreno 4 September 2015 Block B Calculations: There are no calculations. Analysis/ Critical Thinking Questions: Compare your data for the pure substances with the data for each of the two solid mixtures. Which of the pure substances shows behavior that is similar to what you saw with the the two-solid mixtures (Mixture 1 and Mixture 2)? If you cannot positively identify your mixture‚ discuss the possibilities for the mixture. The starch and mixture 2 are both similar because they both did
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Electricity is one of the most important energies in people’s daily life. Without electricity‚ life will be tough and boring. We could only use candles for illumination and firewood for cooking. There would be not PCs‚ no TVs‚ and even no radios. Electricity brings us a great life and it is an affordable energy. The local electricity price in Fairbanks is about 16 cent per Kilowatt-hour. However‚ the waste of electricity is a serious problem in Wickersham hall. When you walking outside the Wickersham
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Water is an odorless‚ colorless‚ tasteless chemical compound that makes up well more than half of the human body. In addition to being prominent in the make-up of the human body‚ it also covers all but approximately 30% of the Earth’s surface‚ and can be found naturally in all three states of matter: liquid‚ solid and gas. Water is a covalent bond known most commonly by its empirical form; H2O. It can also be identified by the Lewis Dot Structural form shown in the figure in the upper right corner
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THE 4 QUALITIES OF GOOD WATER by Dr. Robert O. Young There are many measurements of water‚ but the most important for determining the best water to drink are‚ the pH‚ oxidative reduction potential—or energy potential/activity—molecular structure‚ and purity. Science has helped us to determine that the best measurements for our drinking water are the pH and purity‚ but little understood is the importance of the molecular structure of water. Assuming that most waters that humans are drinking
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Chemistry 110 Chapter 4 – Chemical Bonding: The Ionic Bond Model Study Questions Each question is worth 0.2 points. Total assignment is worth 5 points. 1. Describe the characteristics of ionic compounds and of molecular compounds. Ionic compounds have high melting points and conduct electricity well while covalent molecules have lower melting points and will not conduct electricity in a liquid state. 2. What types of particles are present as ionic bonds? Molecular compounds? Ionic bonding occurs
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Making homemade liquid soap is not as challenging as you may think. With just a few ingredients and a little bit of time‚ you can make your own liquid soap right in the comfort of your home. If you are looking to save some money‚ or just want a fun project to do at home‚ you can create a homemade product that works just as well as commercial-grade soaps at a fraction of the cost. You will need to spend some money upfront‚ but you can make several batches of soap with the ingredients. Bar soap works
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The Purity and Purification of Solids Recrystallization ABSTRACT In this experiment‚ impure adipic acid is purified though recrystallization. The impure adipic acid is dissolved in a solvent. After cooling it is ran through a vacuum filter to separate any moisture. The dry crystals are then weight for percent yield and the melting point range is taken to test the purity. There were two different trials ran in this experiment. The difference between the two was the addition of charcoal in
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1. Solution is a homogeneous mixture composed of only one phase. In such a mixture‚ a solute is a substance dissolved in another substance‚ known as a solvent. Suspension is a heterogeneous mixture in which the particles are large enough to be seen by a microscope or the unaided eye and eventually‚ they settle out of the mixture. A colloid is a substance microscopically dispersed throughout another substance. Unlike colloids‚ suspensions will eventually settle. The suspended particles are visible
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with thiosulfate solution‚”2 being the difference from the former type of iodine titration. Iodometry is more widely used‚ as in this experiment‚ because there are only a few strong reducing agents; thus few iodometric determinations. (2) As mentioned earlier‚ iodometry involves the oxidation of iodide ion; it is added in excess to the oxidizing agent being determined. This would result to the formation of iodine which would be titrated with the standard thiosulfate solution. (2) For example
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Home Search Collections Journals About Contact us My IOPscience Wireless electricity (Power) transmission using solar based power satellite technology This content has been downloaded from IOPscience. Please scroll down to see the full text. 2013 J. Phys.: Conf. Ser. 439 012046 (http://iopscience.iop.org/1742-6596/439/1/012046) View the table of contents for this issue‚ or go to the journal homepage for more Download details: IP Address: 49.145.98.152 This content was downloaded on 12/01/2015
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