9.5 Tests for halogens and halide Ions Test for halogen Test method Test observations Test chemistry and comments Chlorine gas Cl2 A pungent green gas. (i) Apply damp blue litmus. (Can use red litmus and just see bleaching effect.) (ii) A drop silver nitrate on the end of a glass rod into the gas. (i) litmus turns red and then is bleached white. (ii) White precipitate. (i) Non-metal‚ is acid in aqueous solution and a powerful oxidising agent (ii) It forms a small amount of chloride ion in water
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In the express mail industry shipment volume was increasing quickly‚ but prices were falling. For this reason total revenues of the industry had been growing by only 10-15% each year and were expected to grow about 10% for the next five to ten years. The customer base of the industry was broadening due to acceleration in the pace of business. However‚ customers of this industry were not very loyal‚ even though discounts based on volume did encourage customers to focus on one carrier. Customers chose
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LESSON 3: MOLAR VOLUME QUESTIONS 1. Calculate the density of the least dense gas‚ hydrogen‚ at 25⁰C and 101.3kPa. [0.083g/L] 2. Calculate the density of the densest gas‚ uranium (VI) fluoride (UF6) at 70⁰C and 25.0kPa. [3.09 g/L] 3. An unknown monoatomic gas X has a density of 5.37g/L at 25⁰C and 101.3kPa. Calculate the molar mass of the gas and determine its identity. [ 131.028g/mol; Xe] 4. Calculate the density of ammonia gas in grams per litre at 18⁰C and 100.4kPa. [0.706g/L] SCH3U0 Gases
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this experiment I will investigate the relationship between the concentration of the hydrochloric acid and the rate of a reaction. To find this out I will react different concentration of hydrochloric acid and magnesium‚ from there I will monitor the gas (hydrogen) produced and analyse the results. Prediction: I predict the higher the molarity of the hydrochloric acid the faster the rate of reaction therefore the quicker the gas will be produced in the specific time interval. Overview of the
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the body of which all perform various activities and all interrelate with at least one other system; the nervous system. The most complex of all body systems‚ the nervous system controls all functions within the body. The main function of the respiratory system is to inhale oxygen and exhale the waste product carbon dioxide. Oxygen is breathed through the mouth and nostrils into the lungs. The gas then diffuses through the alveolar walls and into the red blood cells. Carbon dioxide carried back
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Assignment 1 UNIT 1 Question 1 (5 marks): Discuss the rate-limiting factor. Why is it important to consider when studying exercise physiology and training? Provide one example to clarify your understanding. The rate-limiting factor is the “step” that limits performances (the “slow step”). If we know the rate-limiting step in a certain physiological pathway or training situation‚ we can manipulate the factors of this step to change and increase the rate of the pathway. This will improve overall training
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objective of this paper is to investigate the exchange rate volatility and its effects on international Trade in Bangladesh during May 2003-Dec 2008. The concept of the study is taken from one off the working papers of Bangladesh Bureau of Statistics (BBS)‚ Bangladesh Bank‚ Centre for Policy Dialogue (CPD) and leading English and Bengali Dailies in Bangladesh. INTRODUCTION The depth and intensity of exchange rate volatility and its impact on the volume of international trade was recognized during 1970s
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The Invention of the White Race‚ Volume I by Theodore w. Allen Theodore William Allen was an independent writer‚ working intellectual and activist. He is known for his works that contributed a great deal in theory that is critical of race and the origins of it. He wrote a lot on concepts of racism and the special privileges of the white people. His vast interest in racial segregation‚ which derives from a made up concept is what perhaps‚ pioneered this work on “The Invention of the white Race”.
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Banking Concept: Simplifying RBI Key Policy Rates What are the key policy rates used by RBI to influence interest rates? The key policy or ’signalling’ rates include the bank rate‚ the repo rate‚ the reverse repo rate‚ the cash reserve ratio (CRR) and the statutory liquidity ratio (SLR). RBI increases its key policy rates when there is greater volume of money in the economy. In other words‚ when too much money is chasing the same or lesser quantity of goods and services. Conversely‚ when there
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The Australian Exchange Rate By: Dontae Smith Introduction: What factors affect the demand and supply of Australian dollars in the foreign exchange markets? Distinguish between the possible causes and effects of currency depreciation and a currency appreciation on the Australian economy. What forces have come into play‚ if any‚ in the past four months that have affected the value of the Australian dollar? Exchange Rate: "The rate at which one unit of domestic currency is exchanged for a given
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