Chemical Reactions- Sodium Hydroxide A chemical reaction is a change where two or more substances are changed into a new substance. You can identify a chemical reaction by colour change‚ effervescence (bubbles)‚ when light or heat given off‚ and the change is usually irreversible. There are 6 main types of chemical reactions- combustion (often called burning)‚ synthesis‚ decomposition‚ neutralization‚ single replacement and double replacement. A combustion reaction is a reaction with oxygen‚ and
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Stephany Matos Chem Lab: Chemical Equilibrium Lab 52 Synopsis Iron (III) ions react with thiocyanate ions (SCN-) to form iron (III) thiocyanate‚ FeSCN2+. It is represented in the equation below: Fe3+ (aq) + SCN- (aq) FeSCN2+ (aq) Therefor the equilibrium constant for this reaction is: KC = [FeSCN2+]/([Fe3+]•[SCN-] For this experiment we were able to determine the equilibrium constant KC for this reaction. First we prepared five different mixtures with known initial concentrations of
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Nickel is one of the most important elements on the periodic table. It has plenty of history‚ as well as a huge importance to society. Its has unique chemical‚ physical‚ and geological properties. Nickel is used commercially in abundance‚ as it is used anywhere from simple art products such as ceramics to complex structures such as tubing for desalination plants. It is even used in the American five-cent coin‚ the "nickel".<br><br>Nickel was discovered by Axel Fredrik Cronstedt‚ in Sweden‚ during
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Computer Technology’s Effect on the Practice of Nursing Susanne Swisher Facilitator: Jeannie Short NUR 224: Nursing Informatics September 23‚ 2007 Plagiarism Statement I have read and understand the plagiarism policy as outlined in the University Bulletin and this module as it relates to the IWU Honesty/Cheating Policy. By affixing this statement‚ I certify that I have not cheated or plagiarized in the process of completing this assignment. If it is found that cheating and/or plagiarism have
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Chemistry: A Molecular Approach (Tro) Chapter 10 Chemical Bonding II: Molecular Shapes‚ Valance Bond Theory‚ and Molecular Orbital Theory 1) Determine the electron geometry (eg) and molecular geometry(mg) of BCl3. A) eg=trigonal planar‚ mg=trigonal planar B) eg=tetrahedral‚ mg=trigonal planar C) eg=tetrahedral‚ mg=trigonal pyramidal D) eg=trigonal planar‚ mg=bent E) eg=trigonal bipyramidal‚ mg= trigonal bipyramidal Answer: A 2) Determine
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Overloading in Fresh Waters 1. Nutrients and Nutrient Overloading 2. OM and BOD Overloading river N and P cycles‚ revisited. The concentrations of N‚ P C and O in the hydrosphere are intricately related by the Redfield relationship. N (+)/P (+) = 16 CO2 (+)/N (+) = 6.6O2(+)/N(-) = 8.6 CO2 (+)/P (+) =106 O2(+)/P(-) = 138 O2 (+)/CO2 (-) = 1.3 Atmosphere exchanges. Nitrogen:¡°fixed¡± N occurs in a number of gaseous forms that are easily exchanged to the atmosphere. Natural sources of atmospheric"fixed"
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ab: Observing a Chemical Reaction Name: Deja Eason Period: 5th Period Partners: Melingh Patterson‚ Tori Millens Date Performed: 9/2/11 Teacher: Mrs. Medina Abstract: This experiment was all about observing a chemical reaction. During the experiment‚ we made observations and possible explanations on why Copper(II)Chloride Dehydrate and Aluminum foil created a chemical reaction. The observations were made by using Copper Chloride‚ Aluminum foil‚ and Distilled water. Before the Aluminum
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This experimental procedure uses compounds from spinach leaves that are exposed to chromatography‚ TLC plate to indicate the different pigments within the spinach extract. ‘Column chromatography in chemistry is a method used to purify individual chemical compounds from mixtures of compounds’ (Wikipedia‚ 2011). This method is similar to thin layer chromatography‚ but the compounds in the mixture are collected separately. Green dye is used in this experiment that consists of blue and yellow constituents
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Effects of Change on Nursing Practice Stacey Ventour-Chambers NU 420 Leadership and Management in the changing Health Care Environment Professor Betty Kohal April 28‚ 2014. Effects of Change on Nursing Practice The birth of a child is a momentous occasion in a person’s life. It may signal the transition of a couple to a family‚ or the expansion of an already established family unit. The manner in which it is handled can have lasting positive or negative effects. Traditional mother/baby care
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Summary Standard Chemical is a company that processes volatile toxic chemicals that are sold for commercial use. The HR manager‚ Jacobson‚ attended a drug and alcohol abuse seminar and realized that the company did not have a policy. Safety is a critical issue at Standard Chemical because of the potential environmental hazards; therefore‚ the HR manager thought it would be smart to implement a drug and alcohol abuse policy. To make sure the managers do not abuse this new policy to get rid of unnecessary
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