nodule is firm‚ hard‚ irregular and fixed‚ the nodule may be malignant -Serum Ca and PH level -CT scan- to help detect and diagnose a goiter‚ or larger thyroid nodules. -Serum PTH- It is ordered to help diagnose the reason for a low or high calcium level and to help distinguish between parathyroid-related and non-parathyroid-related causes. It may also be ordered to monitor the effectiveness of treatment when a patient has a parathyroid-related condition. A
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SY 2012 – 2013 In Partial Fulfillment of the Requirements In Chemistry “Eggshell as Chalk” i Table of Contents Title Page……………………………………………………………………….…i Table of Contents…………………………..………………………………….…ii Acknowledgement………………………………………………………………..iv Abstract……………………………………………………………………………v Chapter I: Introduction…………………………………………………………………………………….1 Statement of the problem……………………………………………… Hypothesis…………………………………………………………………….. Significance of the study………………………………………………… scope
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water and stir to form the calcium chloride solution. Use only distilled water since tap water may have impurities that interfere with the experiment.. Use stoichiometry to determine how much Na2CO3 you will need for a full reaction. * Weigh the calculated amount of Na2CO3 and put it in a small paper cup. Add 25 mL of distilled water and stir to make a sodium carbonate solution. * Pour the sodium carbonate solution from the paper cup into the beaker with the calcium chloride solution. A precipitate
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photography 7 Ammonium chloride NH4CI Used in photography 8 Ammonium carbonate (NH4)2CO3 Smelling salts 9 Calcium carbonate CaCO3 Limestone/chalk 10 Sodium chloride NaCI Table salt 11 Calcium chloride CacI2 De-icer for snow on roads 12 Calcium hypochlorite Ca(ClO)2 Swimming pool disinfectant 13 Ammonium Nitrate NH4NO3 Used in fertilizer 14 Ammonium phosphate (NH4)3PO4 Used in fertilizer 15 Calcium oxide CaO Used to make plaster 16 Carbon dioxide CO2 Dry ice 17 Chromium(III) oxide Cr2O3 Green
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Any calcium carbonate as the main component of natural stone ‚ such as dolomite ‚ limestone and other materials are the most Sinovac mill Raymond mill equipment manufacturers and processing can be used to produce lime. Lime widely used in a variety of engineering applications ‚ but also the first application of cementitious materials ‚ in China there are medical uses of lime . Lime has a strong alkaline chemical reactions can generate hydraulic cement ‚ so the building is in very good infrastructure
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test the gases‚ otherwise you can use the standard set up) The limestone cycle: 1. Burn the limestone chip/ limestone powder in a test tube in a Bunsen flame → calcium oxide 2. Put calcium oxide in water → calcium hydroxide solution + left over limestone 3. Filter the leftover limestone 4. Blow bubbles using a straw into the calcium hydroxide solution → limestone Flame colors: (I copied a table from the internet because it isn’t in the book‚ the ones in red I’m pretty sure you have to know‚
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What are eggshells made of? The main ingredient in eggshells is calcium carbonate (the same brittle white stuff that chalk‚ limestone‚ cave stalactites‚ sea shells‚ coral‚ and pearls are made of). The shell itself is about 95% CaCO3 (which is also the main ingredient in sea shells). The remaining 5% includes calcium phosphate and magnesium carbonate and soluble and insoluble proteins. Author: Fred Senese senese@antoine.frostburg.edu A paint thinner is a solvent used to thin oil-based paints or
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(pH 6 approximately). This reacted with the limestone (which is primarily made of Calcium Carbonate) and slowly dissolved it. This erosion of the rock created the channels‚ caverns and caves that are seen today. Once the caves were formed‚ stalactites‚ stalagmites and other cave decorations began to form. water dripping down form the roof of the cave or flowing over the walls left behind mall deposits of Calcium
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Citric acid is used mainly for home use‚ for getting rid of lime scale (kettles‚ baths‚ toilets)‚ in hard water areas. Citric acid is a weak acid found in fruits such as lemons and oranges. Like other acids‚ citric acid can help you remove stains and rust deposits from toilet bowls without causing any damage to the porcelain surface. Citric acid contains just enough acidic concentration to get the job done without etching or damaging household surfaces in any way. It doesn’t harm the environment
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reaction? • This means that there is an increased area for the reactant particles to collide with. • The smaller the pieces‚ the larger the surface area. This means more collisions and a greater chance of reaction. • Marble chips are made of calcium carbonate. They react with hydrochloric acid to produce carbon dioxide. • The effect of increasing surface area on the rate of reaction can be measured by comparing how quickly the mass of the reactants decreases using marble chips of different
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