neutralising soil; it is a sedimentary rock that is commonly found in quarries. It is a compound consisting of calcium‚ carbon and oxygen called calcium carbonate (CaCO3). As it is a solid it would be very hard to neutralise soil with it so it has to be broken down and made into a liquid form called calcium hydroxide (CaOH2) made up of calcium‚ carbon‚ oxygen and hydrogen. This calcium hydroxide can then be sprayed on the fields to neutralise the soil. Stings When we get stings e.g. wasp‚ bee
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developed to "soften" hard water; i.e.‚ remove the calcium and magnesium ions. Water can be softened in a number of ways. An automatic water softener connected to water supply pipes removes magnesium and calcium from water and replaces them with sodium. Sodium does not react with soap or detergents. If you don’t have an automatic water softener‚ you can still soften laundry water by adding softeners directly to the wash water. These softeners combine with calcium and magnesium‚ preventing the minerals from
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of these bases are hydroxides‚ carbonates‚ or bicarbonates. The following table contains a list of the active ingredients found in several common commercial antacids‚ and the reactions by which these antacids neutralize the HCl in stomach acid. Compound Chemical Formula Chemical Reaction Aluminum hydroxide Al(OH)3 Al(OH)3(s) + 3 HCl(aq) -----> AlCl3(aq) + 3 H2O(l) Calcium carbonate CaCO3 CaCO3(s) + 2 HCl(aq) -----> CaCl2(aq) + H2O(l) + CO2(g) Magnesium carbonate MgCO3 MgCO3(s) + 2 HCl(aq) ----->
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falls and sinks into the ground. As the rainwater continues into the ground‚ it meets with the limestone. Limestone is mostly made up of the mineral calcium carbonate (CaCO3)‚ which is not very soluble‚ so the rocks don’t dissolve very quickly. But‚ if you add an acid‚ you add hydrogen ions (H+)‚ which will react with the carbonate to form hydrogen carbonate (HCO3- ions)‚ which are extremely soluble in water‚ therefore the limestone will start to dissolve. In the USA‚ sinkholes tend to occur in Florida
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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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RESOURCES Why farmers sometimes need to change the pH of soil A healthy‚ productive farm is created from the ground up. The fertility‚ structure and biological activity of your soil are the keys to raising successful crops. Great soil grows great plants with increased vigour and pest tolerance‚ not to mention maximized yields. There’s a lot to know about your soil for sure‚ but the most critical measurement is its pH. What is pH? Represented on a scale of 0 to 14‚ pH is the measurement of the
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Design Lab #17: Reaction Rate - Calcium Carbonate & Hydrochloric acid Design D: Introduction: In this experiment calcium carbonate will be put into a flask and mixed with hydrochloric acid to produce calcium chloride‚ water and carbon dioxide. The formula for this reaction is: CaCO3(s) + 2HCl(aq) → CaCl2(aq) + CO2(g) + H2O(l) Purpose: The purpose of this experiment is to determine how the surface area of CaCO3(s) affects the rate of
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CaCO3+2HCl-----CaCl2+CO2+H2O 2. CaCl2+K2CO3====CaCO3+2KCl The first reaction shows the separation of calcium carbonate from the mixture. In the second reaction we use the product of the first reaction (CaCl2) and change it back to calcium carbonate (CaCO3) by mixing CaCl2 with potassium chloride (2KCl). Objective To separate the components of mixture of sand‚ sodium chloride and calcium carbonate. Materials and Equipment 1. Two beakers 2. Experimental mixtures 3. Distilled water 4. Funnel 5. Filter
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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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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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