SCH4U – The Chemistry of Covalent Bonding Date_____________________ Orbital Hybridization One of the most influential chemistry books ever written was The Nature of the Chemical Bond by Linus Pauling (1901-1994). Published in 1939, Pauling was awarded the Nobel Prize in 1954. Pauling received a second Nobel Prize for peace in 1962. Pauling made tremendous contributions to the field of chemistry, and was an outspoken activist against war and nuclear weapons. If you consider the energy
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Jacinta Houng Comparing the Solubility of Chemicals in Water “Water is known as the “universal solvent” because so many different substances dissolve in it and we rely on this for many of our daily needs.” Introduction: Water is known as the ‘universal solvent’ as it is capable of dissolving a variety of different substances and dissolves more substances than any other liquid. However the ability to be soluble depends on a substances polarity and bonding. This then contributes to the various ways
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Observations of Chemical Change and Physical Change Emily Fromme July 7, 2015 Purpose: To perform a variety of chemical reactions and make scientific observations to describe the chemical change. Equipment: Pie pan, dish soap, distilled water, matches or lighter, pair of sunglasses, paper towel, scissors, sheet of black paper, sheet of white paper, source of tap water, sunlight (needed for 30 minutes); burner fuel, 2 pairs of gloves, pipet, empty short-stem pipet, goggles, spatula (metal)
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process of digestion to break down and extrapolate the nutrients from our food to maintain and fuel our bodies. In order to perform digestion our bodies use enzymes, which are biological catalysts. They are made of proteins that responsible for the chemical reactions essential to sustaining life. Enzymes have three major characteristics: increase the rate of reaction, are substrate specific and lower the energy barrier it takes to for reactants to occur. Enzymes can also react differently under certain
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HANDY-DANDY GUIDE TO WRITING A REACTION PAPER If you were to ask 10 people, "How do I write a Reaction Paper?" you'd probably get 10 different responses. No one seems to know exactly how to do one, yet almost everyone is assigned one at some point in his or her academic career. Here is a guide to what faculty are usually "looking for" in a well-written reaction paper. Remember, however, that every faculty member is different: some will want you to spend more time "analyzing" or "evaluating" the
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plants use a process called photosynthesis. This process is when the plant uses the sunlight to make sugar molecules. Also during this process the plants gain solar energy. The solar energy trap will produce chemical reactions that will require water and carbon dioxide. The carbohydrates (chemical reaction from water and carbon) are consumer by animals. Soon a chain reaction begins: plants- animals eat the plants- animals eat the animals that eat the plants. The sunlight energy will move, grow and reproduce
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hydrochloric acid has been reported to cause gastritis, chronic bronchitis, dermatitis, and photosensitization in workers. Prolonged exposure to low concentrations may also cause dental discoloration and erosion. Hydrochloric Acid is a strong chemical compound. It is a powerful substance with many uses. The bonding in hydrochloric acid is the reason why it has a high The two elements making up hydrochloric acid are Hydrogen and Chlorine. Each molecule of hydrochloric acid is made up of one
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conflicting an alteration that deviates from the norm. In other words, deviation produces negative responses to counteract the deviation. Metabolism is the amount of all the chemical reactions occurring in a specific order. When metabolism is broken down it is called biochemical reactions in which thousands of chemical reaction takes place, all in the same specific order. The cycle in which the reactions takes place is takes just under twenty four hours to complete, once completed; the cycle
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Jiahong Liu, and John R. Schlup Department of Chemical Engineering, Kansas State UniVersity, Manhattan, Kansas 66506 Paul A. Seib Department of Grain Science and Industry, Kansas State UniVersity, Manhattan, Kansas 66506 Ferenc Friedler and Bontond Bertok Department of Computer Science, UniVersity of Pannonia, Veszprem, Egyetem u. 10, H-8200, Hungary ´ A hierarchical approach is proposed to estimate the sustainability-potential of a chemical process, based on any of the alternative synthetic
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CONTROL OF DISTILLATION COLUMN USING ASPEN DYNAMICS Abhishankar Kumar*, Basudeb Munshi** *M.Tech. Student, abhiengg05@gmail.com ** Associate Professor, basudeb@nitrkl.ac.in Department of Chemical Engineering, NIT Rourkela- 769 008 (Orissa) ABSTRACT This paper deals with the control of binary distillation column of propane and iso-butane mixture. The column has 32 trays including reboiler and condenser. The simulation work has been carried out by Aspen Dynamics software a licensed product
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