limestone which is predominantly calcium carbonate. Different soil types behave differently hence there is the need to test for acidity. To raise the pH and lower the acidity or sweeten the soil‚ lime is added. Agricultural lime or garden lime is made from pulverized limestone or chalk. Some types of garden lime are dolomite lime‚ quicklime and slaked lime. Calcium carbonate occurs in nature as limestone
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precipitate reaction. A precipitate reaction happens when cations and anions of certain aqueous solutions react and combine forming a precipitate‚ which is an insoluble ionic solid. In this precipitate reaction we dissolved both chosen chemicals (powder Calcium Chloride dihydrate and powder Sodium Carbonate) in distilled water and then mixed them together in a single beaker. Finally we filtered this mixture and let all the water evaporate leaving behind solely the precipitate. In order to determine the amounts
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Weigh out your 1.0g of CaCl2-2H20 and put it into the 100mL beaker‚ add your 25mL of distilled water and stir to form the calcium chloride solution. Next‚ use stoichiometry to determine how much Na2CO3 and put it into a small paper cup. Then add the 25mL of distilled water to make the sodium carbonate solution. Mix the two solutions in the beaker and a precipitate of calcium carbonate will form instantly. Next‚ set up your filtration assembly. After the filtration assembly is ready‚ swirl the contents
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What is heartburn and when does it occur? Heartburn occurs when hydrochloric acid‚ which is used to digest food in the stomach‚ backs up into the oesophagus causing an irritation. Normally the oesophageal sphincter would close tightly‚ not allowing the acid to back up. If this valve‚ however‚ is not functioning‚ the acid can slip by. Occasionally heartburn can be associated with hiatus hernias. Describe how the heart remedy works‚ including a description of what a neutralisation reaction is
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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education *4308315385* CHEMISTRY Paper 2 Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number‚ candidate number and name in the spaces at the top of this page. Write in dark blue or black pen. You may need to use a pencil for any diagrams‚ graphs or rough working. Do not use staples‚ paper clips‚ highlighters‚ glue or correction
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Chemistry vacation Assignment Standard -X 1. Name a sodium compound which is used for softening hard water 2. Write the chemical name and formula of baking soda? 3. What will happen if the solution of sodium hydrogen carbonate is heated? Give the equations of the reaction involved? 4. Write the chemical name and the formula of bleaching powder. 5. Write the chemical formula of plaster of Paris? 6. What will happen if heating is not controlled while preparing
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There are various types of essay that every High School‚ College and University students gets to encounter in the course of the academic program. Essays are typical writing assignments that require a writer to use personal input in order to convey an idea‚ present/defend an argument or simply get across some information to the audience. There are numerous types of essays that our essay writers can assist you with. 5 paragraph essays 5 paragraph essay is the classic. It is strictly structured
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Calcium oxalate (CaOx) being a major inorganic constituent of human kidney stones‚ contributes around 70-80% of the kidney stone. In India‚ approximately 5-7 million patients are suffering from kidney stone disease [6] (Kaladhar et al.‚ 2012). Urinary oxalate is found to be a major factor for calcium oxalate stone formation. As the molar ratio of oxalate-to-calcium is normally 1:10‚ slight changes in urinary oxalate concentration may
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Question 2 3) Calcium in the diet of a teenager is actively absorbed in the small intestine and transferred into the intestinal capillaries. Describe the route this calcium would follow to end up in the upper arm. Describe in detail the role of calcium at the neuromuscular junction as well as its role in the mechanism of muscle contraction and relaxation of the triceps. Considering the function of calcium in bone growth‚ explain in detail how the humerus would grow in length. Calcium in the diet
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of barium and calcium chloride‚ then the highest concentration of calcium chloride would affect them the most because of the production of hydrochloric acid and calcium oxide from the mixing of water and calcium chloride‚ two very dangerous acids‚ with the highest concentration having the biggest chemical reaction. Within five minutes of putting the Daphnia into the 10 (ppt) solution of calcium chloride‚ one or more of the Daphnia died. The Daphnia in the 1 (ppt) solution of calcium chloride died
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