Investigating the effects of changing concentration: iodine clock reaction. Abstract This is an experiment to show the Iodine Clock Reaction. To create a chemical reaction to see how long it takes for solution to change to a dark blue Color. When changing the concentration of the iodide (K1) and adding distill water to make it up to 5cm³ each time. This is to see if the reaction takes less with less concentration or faster with more concentration added to the peroxodisulphatee. So with the solution
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people believe that it was first made in England. Also‚ Trinity College remade Creme brulee in a form that looks like today’s Creme brulee. This food has a custard cream at the bottom and a layer of caramelized sugar on the top. There is one chemical reaction that is involved in making Creme brulee‚ which is caramelization. Caramelization is a process of the sugar getting oxidized. This happens at different temperatures for different types of sugar‚ but
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This experiment was performed to demonstrate a cycle of chemical reactions involving copper. This lab will start with copper as a reactant in the first reaction through a series of five chemical forms of aqueous phase reactions and ending to calculate the percentage of recovered solid copper as a product in the last reaction of the experiment. The experiment resulted in a percent recovery from the cycle of copper reactions of an increase to 139%. . Introduction: The purpose of this experiment is
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seem to be caused by adverse drug reactions to medical drugs‚ according to research. On the contrary‚ Philippines don’t have a high risk of deaths that causes these because here in our country‚ we rely on those alternative medicines or herbal medicines. It is a lot cheaper but actually‚ it doesn’t have those therapeutic claims so it has a minimal assurance of being treated with the sickness. With these‚ we choose to use Western Medicines as well. Adverse Drug Reaction (ADR) is the response of our body
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Samples of DNA with the target sequence are heated to a reaction temperature of 94-96˚ C that causes DNA melting of the DNA template without denaturing the enzyme by disrupting the hydrogen bonds between complementary bases of the double helical DNA‚ yielding single-stranded DNA molecules(“How Is PCR (polymerase Chain Reaction) Done?”). DNA polymerase does not get degraded in such high temperatures since the DNA polymerase used in this reaction is thermostable as it is isolated from thermophilic bacteria
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victims evacuate the building. In this time period‚ the South Tower is also hit which begins to crumble. In effort to save themselves‚ many of the officers hide into an elevator shaft to protect themselves from the falling tower. McLoughlin and Jimeno are 2 of the 20 found alive from that day after being discovered under feet of debris with the ineptitude to get out on their own. The director‚ Oliver Stone has generated a film that gives the audience a taste into the experiences of the survivors and victims
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I. Title: Reaction of Metals II. Problem: The purpose of the experiment was to determine if and how different metals react to different solutions. III. Hypothesis: IV. Materials: Dropper‚ Beakers‚ wax pencil‚ Goggles‚ eight test tubes‚ a rack for the tubes‚ three strips of Zinc‚ two strips of Copper‚ three strips of Magnesium‚ steel wool‚ Lead nitrate‚ Silver nitrate‚ Copper sulfate‚ Magnesium chloride‚ Zinc chloride‚ Sodium chloride‚ and Potassium. V. Procedure: In tube 1 add five
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Data Table: Record your observations in the following table Na3PO4 NaI Na2SO4 NaCl NaHCO3 Na2CO3 NaOH Co(NO3)2 Precipitated a blue color NR NR NR Turned a milky purple color Precipitated a light purple color Precipitated a light blue color Cu(NO3)2 Precipitated a light blue color Precipitated a dark amber color NR NR Precipitated a light blue color Precipitated a light green color Precipitated a light blue color Fe(NO3)3 Precipitated a light milky yellow color Turned a dark black
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Writing a Reaction Paper v A reaction paper is an analysis and an evaluation of the material presented. v In a reaction paper‚ make sure to give a detailed overview of the experience and tell what exactly was taken out of the experience. v A reaction paper should be more than a simple summary of the material that you are reacting upon. v It should include your opinion or reaction to the material. v This may take on a variety of forms: § You may compare the work to other related material;
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Reactions to danger vary greatly in different types of situations and different types of people. A few known reactions to grave danger are actually in pairs of completely opposite reactions. What I mean by that is that is that in a moment of distress‚ one can act in ways that are completely different from each other. For example‚ one can either freak out or stay calm‚‚ freeze or keep going‚ run or stay‚ ect. These actions‚ of course‚ depend on the person‚ place‚ and situation. There are dozens
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