Michael Haneke’s 2009 film‚ The White Ribbon‚ presents an ensemble of characters‚ rather than one central character or protagonist‚ and their lives in the midst of multiple arbitrary misfortunes within their small German town. There is severe righteousness within the town‚ especially in a religious sense‚ which is imposed upon all townspeople and enforced by characters such as the Pastor (Burghart Klaussner). The unrealistic expectation for all townspeople to be pure and innocent causes the suppression
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Heat of Formation of Magnesium Oxide Objetive: To determine the heat formation of MgO (Magnesium Oxide) using Hess’s Law‚ which states the heat within a chemical reaction is independent of the pathway between the initial and final states. Introduction: Chemical reactions require heat energy to complete‚ called an endothermic reaction‚ or produce heat energy‚ and thus called an exothermic reaction. The heat energy produced by such reactions can be measured using a calorimeter‚ a piece
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Finding the formula of magnesium oxide Aims When magnesium is heated in air‚ it reacts with oxygen. During this oxidation reaction‚ magnesium oxide is produced. This increases the mass. If we know the mass of magnesium at the start‚ and the mass of magnesium oxide produced at the end‚ we can work out the mass of oxygen which has been combined with the magnesium. We can use these masses to work out the formula of magnesium oxide. Eye protection must be worn Apparatus Crucible and lid
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for magnesium. Manipulated Variables- volume of HCl‚ length of magnesium strip‚ mass of magnesium oxide‚ Controlled Variable- type of calorimeter (Styrofoam cup) Responding Variable- change in temperature Procedure: 1. Cut out 3 pieces of magnesium strips each with lengths of maximum 5 centimeters. 2. Measure and record the lengths of the magnesium. 3. Scrub the magnesium strips with steel wool to clean out impurities. 4. Pour out approximately 310 mL of hydrochloric acid from
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Awareness Ribbon Color Meanings Awareness ribbons are short pieces of ribbon folded into a loop‚ or representations of such‚ which are used in the United States‚ Canada‚ Australia‚ UK and other parts of the world as a way for wearers of the ribbon(s) to make a statement of support for a cause or social issue. The use of ribbons is designed to draw awareness to health issues and other issues. Many groups have adopted Awareness Ribbon Color Meanings as symbols of support or awareness‚ and as a result
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Title : Expt.1 Determination of the enthalpy (heat) of reaction of a monobasic acid with sodium hydroxide Experiment no : 1 Experiment title : Determination of the enthalpy (heat) of reaction of a monobasic acid with sodium hydroxide Objectives: 1) To understand the enthalpy chemistry. 2) To determine the calorimeter constant. 3) To determine the enthalpy reaction of acid-base reactions. 4) To study the exothermic reaction. Apparatus and Materials : * Dewar flask‚ stopwatch
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continue cancer treatment‚ Pink Ribbon Girls strives to serve as active emotional‚ physical support system for women in the Miami Valley with services such as free weekly‚ healthy meals for a family of four‚ house cleaning‚ transportation to and from
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Title : Investigation of Action of Saliva and 3 M Hydrochloric Acid in Two Carbohydrate Solutions Objective : To investigate the action of saliva and 3 hydrochloric acid in two carbohydrate solution Results Table1: Observation Conclusion Solution A Benedict’s test: Blue coloration turned to brick red precipitate. Reducing sugar is present in the solution A. Iodine test: The coloration remained unchanged. Starch is absent in solution A. Solution B Benedict’s test: The blue coloration
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Determining the Empirical Formula of a Compound: Burning Magnesium Lab Purpose: To experimentally determine the percent composition of a reaction product. Directions: Work in teams of three. The directions for this lab are on a separate sheet of paper at your lab bench. Make sure that everyone in your group understands the process and purpose before you get started. Assign tasks. Everyone in the group will be expected to contribute at the same level of participation‚ and for this experiment
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Chemistry SL Magnesium Oxide Lab Report Rashpreet Singh Date Performed: November 6‚ 2014 Research Question: To determine the empirical formula of the compound which forms between magnesium and oxygen. Design: The following figure represents the experiments lab setup‚ visualize the equipment used. Materials: Done 1. Ceramic evaporating dish 2. Electronic balance 3. Bunsen burner 4. Retort stand‚ ring clamp‚ clay triangle 5. Sand Paper 6. Tongs 7. Magnesium Ribbon Safety: Done 1. The duration
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