Chemical Reaction Lab Well #1 CuCl2 + Al (shot) - Bubbling - Turning reddish-maroon - 33oC Well #2 CuCl2 + Al (foil) - Bubbling‚ but less than well #1 - Turning black - 28oC Well #3 CuCl2 + Zn - Turned black then red - No bubbling - 29oC Well #4 CuCl2 + NH4OH - Cloudy - No bubbling - 26oC Well #5 CuCl2 + NaCO3 - Not mixing with CuCl2 - Heterogeneous - 25oC Well #6 CuCl2 + AgNO3 - Cloudy - Top layer is white -29oC 1. The more pronounced reaction was the aluminum
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Kinetics Kinetics 6.1 Rates of reaction 6.2 Collision theory 6 16.1 Rate Expression (AHL) 16.2 Reaction mechanism (AHL) 16.3 Activation energy (AHL) 6.1 Rates of reaction 6.1.1 Define the term rate of reaction. 6.1.2 Describe suitable experimental procedures for measuring rates of reactions. 6.1.3 Analyse data from rate experiments. © IBO 2007 Figure 601 An explosion is a quick reaction D ifferent chemical reactions occur at different rates (i.e. speeds)
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Freedom of Speech The Constitution of the United States was written in 1787 and put into effect in 1789. The first amendment was put into place in 1791 as a part of the Bill of Rights. The first amendment of the Bill of rights ensures individuals freedoms of religion‚ speech‚ the press‚ and right to assemble. Freedom of speech will allow individuals to express their ideas freely. In the early 16th century individuals were taken to prison for speaking their minds and sometimes this penalty was punishable
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Observations: Part I: Reaction between iron and oxygen Appearance of steel wool after 20 minutes From (relatively) shiny metal strips to not-so-shiny strips that are stained with dark‚ reddish-brown stuff. Part II: Decomposition of hydrogen peroxide Appearance of potato and hydrogen peroxide combination: Lots of white‚ foamy bubbles around the potato slices. Day 2 Observations: Part III: Reaction between zinc and acetic acid Appearance of penny in vinegar after
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An important theme from the film “Freedom Writers” directed by Richard LaGravenese is the theme of understanding‚ respect and tolerance. “Freedom Writers” is an amazing and inspiring film set after the Rodney King Riots in L.A. the film is based on a true story about the experiences that the students from room 203 at Woodrow Wilson High School went through. The variety of camera work used throughout the film helped portray how the characters demonstrated the importance of showing tolerance‚ understanding
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In his book‚ Freedom Bound‚ Robert Weisbrot argues that the civil rights movement is interwoven with American political reform of the time‚ and furthermore‚ that "the black quest for justice and the national crusade for a ’Great Society’ are best understood in relation to each other" (Weisbrot xiv). He traces the Great Society from its beginnings as Lyndon Johnson’s liberal social reform program‚ through the Reagan years‚ claiming it was not entirely successful in breaking down racial barriers between
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CBSE TEST PAPER-03 CLASS - X (Chemical Reactions and equations) 1. Take about 5 ml of dil. HCl in a test tube and add a few pieces of fine granules to it. Which gas is evolved? (a) Chlorine (b) Hydrogen (c) HCl (d) Nitrogen 2. Dissolving suger is an example of(a) Physical change (b) Chemical change (c) Redox Reaction (d) None of these. 3. Heat is evolved diving (a) Endothermic Reaction (b) Displacement Reaction (c) Combustion Reaction (d) Combination Reaction 4. Which of the following is not a balanced
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complex reactions and reaction sequences‚ where raw materials react together to give the product. Such chemical process often releases energy‚ in the form of heat‚ and the reaction is described as exothermic. Many of these reactions may also evolve gases at high rates‚ and could cause reactor over-pressure. Thermal runaway reaction Runaway reactions are thermally unstable reactions where the heat of reaction can raise the temperature of the reactants sufficiently to accelerate the reaction rate out
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oppression. Today I am going to touch upon some of these figures‚ who has taken up the cause to relieve humanity from the various oppressions. These great figures were accredited as the Great Freedom Fighter’s of the world. Who can forget our First Prime Minister Pandit Jawaharlal Nehru an other great Indian freedom fighter also known as the Chacha Nehru . He was born at Allahabad in 1889 on 14th November. He started his practice at Alahabad High Court. In the young age of Nehruji the British ruled
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Elimination Reactions ________________________________________ As described previously‚ primary alkyl halides generally undergo substitution reactions with simple nucleophiles by an SN2 mechanism. Secondary alkyl halides‚ often react with simple basic nucleophiles to give a mixture of products arising from both substitution and elimination. As with substitution reactions‚ the rate at which elimination reactions proceed can be proportional to both the concentration of the base and the concentration
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