Equilibrium shifted since there was higher concentration on the product side. 3.Experimental error‚ is hard to differentiate by looking the colours‚ there for it may not be accurate as it was expected. Questions: 1. Cu was completely changed to products‚ and can be observed for cu++ a role that shows that only the scn ion can change the colour. 2. In part I‚ system II the reaction of HNO3 causes a shift for the concentration of H+ was reacting and also observed the reciprocal of the forward
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changes during this experiment. What evidence did you use to decide that something was a chemical change? Give at least two examples of chemical changes you observed. In CuCo3 reacting with HCl‚ which released a light green gas and produced bubbles. Cu(NO3)2 changed to a green and yellow color‚ and NaCl mixed with HCl changed to hold a slightly yellow tint. CuCo3 with NaOH changed to a darker color‚ also irreversible. These are all signs that a chemical change occurred. Classify the following properties
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BATTLE OF RAICHUR The city is located in a doab flanked by the rivers Krishna and Tungabhadra‚ which makes it fertile and well supplied with water. The battle of Raichur fought by Sri Krishnadevaraya‚ King of Vijayanagar empire and Ismail Adil Shah‚ the king of Bijapur. The battle of Raichur had far-reaching effects. The Hindu victory weakened the power and prestige of the Adil Shah. He turned his attention to make alliances with the other Muslim neighbours. The victory also caused other Sultans
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mation is contained in footnotes scattered throughout the book and in the references listed at the end of the chapter. The subject of differential equations originated in the study of calculus by Isaac Newton (1642–1727) and Gottfried Wilhelm Leibniz (1646–1716) in the seventeenth century. Newton grew up in the English countryside‚ was educated at Trinity College‚ Cambridge‚ and became Lucasian Professor of Mathematics there in 1669. His epochal discoveries of calculus and of the fundamental laws of
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Mr. Resnick coined the term and making it a national debate on whether it should or should not be a criminal offense. This act of killing babies during the first 24 hours of life came from England and was in the American Colonies. Based on the‚ “In 1646 the General Court of Massachusetts Bay had enacted a law where "a stubborn or rebellious son‚ of sufficient years and understanding‚ " would be brought before the Magistrates in court and "such a son shall be put to death." (Milner) This court order
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odor No effect No effect No effect Red litmus paper turn blue White bubbles No effect Cu Brown No odor No effect No effect No effect Red litmus paper turn blue No effect No effect Zn Silver No odor No effect No effect No effect Red litmus paper turn blue Fizzing No effect MgO White Powder smell No effect No effect Strong boil Red litmus paper turn blue Yellow fizz No effect Cu(NO3)2 Blue No odor Turn green No effect No effect No effect Turn green No effect
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this experiment‚ you need two erlenmeyer flasks‚a timer‚ a LabQuest with a temperature probe‚ two beakers‚ ice‚ distilled water‚ starch solution‚ 0.200 M of KI‚ 0.005 M of Na2S2O3‚ 0.200 M of KNO3‚ 0.100 M of K2S2O8‚ 0.100 M of (NH4)2SO4‚ and 0.100M Cu(NO3)2. Students will first mix a specific amount of a combination of different concentrations of instructed chemicals and wait for the mixture to turn blue. During this time‚ students will swirl
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bEAN BAG ISOTOPES:ABUNDANCE AND ATOMIC MASS LAB By: Catriona Whalley Partner: Ming Siegel Due: 1.14.10 Prelab A new atomic theory‚ in which all atoms of the same element are identical to one another and equal in mass‚ was proposed by the scientist Dalton. Although the theory had its flaws and was simple‚ it was revolutionary. Scientists became able to study the actual structure and mass of atoms after the discovery of radioactivity. Soon‚ isotopes were discovered‚ as atoms of the same element
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solution. 10. Give the balanced net ionic equation for the reaction responsible for the shift in equilibrium for this system. Answer: j. (a) a white precipitate is formed (b) caused by the formation of Cu(OH)2 (c) which is described by the equation Cu2+ + 2OH- Cu(OH)2 since ammonia is present as an aqueous solution‚ thus the reacts w/ the hydroxide part to yield
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his contributions were welcomed by some they were most obviously not welcomed by others. Shortly after 1640 Hobbes completed his work “The Elements of Law” and then fled to Paris where he reunited himself with Mersenne’s group. Six years later‚ in 1646‚ Charles II‚ a young prince of wales seeking refuge in Paris‚ asked Hobbes to teach him in the principles of mathematics to which Hobbes accepted. While in Paris‚ Hobbes worked on his political philosophy and sciences (4). Around 1651‚ Hobbes feared
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