Determining Order from Rates of Reactions AP Chemistry Purpose The focus of this experiment is to recognize that when aqueous solutions of potassium iodate ion (KIO3-) and bisulfite ion (HSO3-) are mixed‚ a series of reactions will occur‚ and the final reaction is signaled by the appearance of a dark blue color. My partners and I investigate how the concentration of the reactants affects the rate of reaction. The purpose of this lab is to find
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Why are strategic decisions different from other kinds of decisions? How? Why? Strategic decisions differ from other kinds of decisions because they are broad in scale‚ resource intensive‚ long term in nature‚ and surrounded by uncertainties. Strategic decisions are rare and usually have no precedent to follow‚ they are significant‚ resource intensive and require a lot of commitment at all levels. In addition‚ strategic decisions set the standard upon which lesser decisions and future actions
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Reaction Paper View From the Top “View from the Top” is a really must seen film. Though I’ve already watch the movie when it was aired on television I must say that it doesn’t bored me‚ in fact I enjoyed very much every episode. Gwyneth Paltrow the leading actress portrays her role very well besides the fact that she is really pretty and very much pleasing to my eye. She also trots around in a lot of clingy‚ colorfull gaudy outfits that show off her graceful hot body and her sexy attitude to
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Why looks are the last bastion of discrimination In the 19th century‚ many American cities banned public appearances by "unsightly" individuals. A Chicago ordinance was typical: "Any person who is diseased‚ maimed‚ mutilated‚ or in any way deformed‚ so as to be an unsightly or disgusting subject . . . shall not . . . expose himself to public view‚ under the penalty of a fine of $1 for each offense." Although the government is no longer in the business of enforcing such discrimination‚ it still allows
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Experiment 4 Spectroscopic study of Cu(II) Complexes: Crystal Field Theory Objective: To study the effect of ligands on crystal field splitting energy ( E) Theory The color of coordination compounds of the transition elements is one of their characteristic properties. These colors are due to the absorption and subsequent emission of light in the visible part of the spectrum. Light in this region of the spectrum caused promotion of d–electrons from a lower to a higher energy level. The
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chemical element copper‚ with Atomic Number 29‚ has been extensively used for thousands of years because of several primary properties that have dictated its use throughout history. Among them we can count durability‚ strength and‚ as a semi-noble metal‚ good resistance to corrosion. With a hardness of 3 on the Mohs scale‚ pure copper is relatively soft and malleable‚ which makes it an easy metal to work with. Analyses of artefacts from lithic civilizations have shown that native copper had not only
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Lab #5 Chemical Reactions & Balancing Equations Objectives Observe and classify several chemical and physical changes. Give evidence for the occurrence of a chemical reaction. Write a balanced equation for a chemical reaction. Identify a reaction as a combination‚ decomposition‚ replacement‚ or combustion reaction. Background Physical properties can be observed without changing the chemical composition of the substance. Common physical properties that can be measured without changing the chemical
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In order to first perform the reaction‚ 1.5 mL of 4-methylcyclohexanol was added to a pre-weighed 5mL conical vial. The conical vial was then weighed to find the actual mass of 4-methylcycloheaxanol. Then‚ 0.4mL of 85% phosphoric acid was added to the conical vial using a plastic pipet. Six drops of concentrated sulfuric acid was then added to the vial using a glass pipet. A spin vane was then added before adding the Hickman head‚ water condenser and a drying tube packed with calcium chloride to
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The hypothesis If a chemical reaction occurs‚ then there will be indicators of a chemical change‚ was supported throughout this experiment. Throughout this experiment there were several reactions that took place‚ and an indicator of such chemical reactions could be seen throughout each one. The first piece of identifiable evidence was present in the first step‚ which was when copper (II) nitrate and sodium hydroxide were combined. When stirred‚ a blue precipitate formed at the bottom of the test
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Analysis: Copper Lab 1) Calculate the mass of the copper that was recovered 2) Use the formula shown below to calculate the “percent of recovery” of copper for your experiment. 3) Use the proper symbol and formula to write balanced equation for each of the five copper reactions‚ include state symbols. 4) Classify each of the five copper reactions. (Refer to the above order‚ please!) A) Single Displacement B) Double Displacement C) Decomposition D) Double displacement E) Single Displacement
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