leaving 3’-monophosphate group. This is achieved when the acidic imidazolium ion of His119 simultaneously protonate the oxygen of the phosphate oxyanion group. 23 This leads to the formation of 2’‚3’-cyclic phosphorane monoanionic intermediate‚ which is stabilized by the surrounding
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To what extent did Edward IV restore royal authority in the years 1471 1483? Edward IV restored some elements of royal authority in the years 1471 – 1483‚ he had destroyed his opposition or forced them into exile‚ he used family member to control more volatile regions and took a keen interest in law and order. In addition he improved the English economy and made a somewhat successful invasion of France. Although some would argue that Edward failed at restoring Royal authority because his heirs
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PUTTING IT TOGETHER: Classifying Chemical Reactions Purpose: To observe and differentiate between the four different types of chemical reactions. Variables: The independent variables are the sodium chloride‚ sodium carbonate‚ magnesium‚copper‚ copper (11) sulfate‚ silver nitrate‚ oxygen‚ lead(11) nitrate‚ sodium carbonate‚ copper (11) sulfate pentahydrate. The dependent variables are the chemical reactions that are being looked for. For example decomposition‚ synthesis‚ single displacement or double
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IB CHEMISTRY Unit 6: KINETICS STANDARD LEVEL: Number Objective Rates of Reaction Define the term rate of reaction. Describe suitable experimental procedures for measuring rates of reactions. Analyze data from rate experiments. Students should be familiar with graphs of changes in concentration‚ volume and mass against time. Collision Theory Describe the kinetic theory in terms of the movement of particles whose average energy is proportional to the temperature in Kelvins. Define the term activation
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Introduction Commissioned by the Deltion College from the third class International Business Studies I have written this report. The report you’ll see in front of you is the work of 10 weeks research. For this unit I’ve been asked to plan the set-up of a small business in my local area. Starting a business involves planning‚ making key financial decisions and completing a series of legal activities.
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The investigation stage requires thorough examination in order to learn the exact natures of our challenges. Effective and comfortable solutions happen when we develop a stable plan and implement it. This requires brainstorming‚ visiting various sources‚ and performing individual research. Results need to be evaluated and compared in order to determine whether the plan is realistic and most suitable as a method. The sources will vary depending on each situation but are not limited when solving problems
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Edward Dickson CHE101 DS-01 Experiment Date 7/21/2013 Report Submitted 7/21/2013 Title: Experiment #8: Ionic Reactions Purpose: In this lab we will work with aqueous solutions of ionic substances and determine if they are soluble. If the solution appears milky than it is known as a precipitate reaction‚ meaning it is soluble‚ and that the ions separated and became surrounded by water. Precipitates in this experiment are electrically uncharged. To identify which compounds are
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Experiment 16: Kinetics: The Iodine Clock Jane Smith Purpose: The objective of this experiment was for students to apply their knowledge of kinetics and rate laws in order to determine the rate of a chemical reactions‚ activation energy‚ and frequency factors of those reactions. Specifically‚ this experiment was performed using a series of solutions with varying concentrations of KI‚ Na2S2O3‚ and (NH4)2S2O3 . Students recorded time elapsed to observe physical evidence of a reaction taking place
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STANDARD GRADE BIOLOGY CREDIT LEVEL REVISION QUESTIONS INVESTIGATING CELLS 1. In an investigation‚ three 25 g samples of sultanas were put into separate beakers of distilled water‚ as shown below: After 24 hours‚ the sultanas were removed from the water‚ blotted on filter paper and reweighed. The results are shown in the table: |Sample |Mass after 24 hrs (g) |Percentage change in mass | |1
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BUDGET OF WORK IN MATHEMATICS VI FIRST GRADING PERIOD 1. WHOLE NUMBERS A. Comprehension of Whole Numbers (Pre-requisite Skills Before BEC) 1. Reads and writes numbers through billions 2. Identifies the properties of addition/multiplication of numbers 3. Expresses a number in simple form to expanded notation and vice-versa 4. Rounds numbers to the place value specified 5. adds five or more digit numbers with four or more addends with sums through
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