But for the Gelusil Antacid when the HCl was added the solution became neutralized but not clear. This was because the medical ingredients were different‚ which are listed below: • Aluminum Hydroxide Al(OH)3 • Magnesium Hydroxide Mg(OH)2 • Simethicone ii) Error Analysis: 1. PROBLEM: If the materials were not cleaned properly and chemicals are still inside from the previous experiment it would affect the results of your current experiment. SOLUTION: Before you
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the limestone is thoroughly mixed with the stream of hot air and it therefore decomposes completely. 1.3 Decomposing carbonates Calcium is in group two‚ as is magnesium‚ so we can expect magnesium carbonate to have the same properties as calcium carbonate (they both decompose) The behaviour of carbonates Calcium carbonate (2) / Magnesium Carbonate (2) / Zinc Carbonate/ Copper Carbonate DECOMPOSE (Y) Potassium Carbonate(1) / Sodium Carbonate (1) DO NOT DECOMPOSE (N) From looking at these results
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then filtered the sample‚ which is a stock solution. Test for Magnesium 20ml of stock solution is taken in a flask and then 10mg of NH4Cl‚ 10 mg of NH4OH and excess disodium hydrogen phosphate solution is added. Then shaken and rubbed the wall of test tube. If white ppt is formed the Mg2+ is present. Mg2+ + NH4Cl + NH4OH + Na2HPO4 →Mg(NH4)PO4 ↓ + Na+ + H2O Magnesium Ammonium Phosphate Test for Aluminum: Taking 20ml of
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Nitrogen‚ phosphorus‚ and potassium‚ the building blocks for healthy plants‚ are usually not present in sufficient amounts in the soil to support plant growth. These are known as macronutrients. In addition‚ micronutrients‚ such as calcium‚ sulfur‚ and magnesium‚ are also necessary‚ but in smaller amounts.Table 1 shows the role of these nutrients in plant growth. Commercial fertilizers are inorganic or organic compounds that replenish the soil with additional nutrients to increase growth and keep plants
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which was evident during the saponification reaction. The simple soap did appear to be a good emulsifier because the soap did dissolve in the mixture of mineral oil and water. In hard water the calcium and magnesium did loose their effectiveness and became insoluble in the solution. When magnesium was added to acidic water‚ the salt was converted to a fatty acid‚ and was also insoluble. Background: The purpose of this experiment is to demonstrate saponification in order to prepare a simple soap
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ABSTRACT Some rechargeable batteries can be restored through external means‚ such as applying a full discharge. There are‚ however‚ many defects that cannot be corrected. These include high internal resistance‚ elevated self-discharge‚ electrical short‚ dry-out‚ plate corrosion and general chemical breakdown. The performance loss of a battery occurs naturally as part of usage and aging; some is hastened by lack of maintenance‚ harsh field conditions and poor charging practices. This paper examines
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their everyday lives. Minerals The RDA of calcium and phosphorus for children 1 to 10 years is 800mg and that of zinc is 10mg. Children of age 7 to 10 years need 100mg of iron‚ 250mg of magnesium and 120mg of iodine. Pregnant woman and lactating mother should include 400mg calcium and magnesium and 150mg magnesium. Woman in her pregnancy should consume 5mg zinc and 25mg iodine daily while breastfeeding mother should be provided with 10mg zinc and 50mg iodine. Comparing both cases‚ young children
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Chapter 1 Chemical Reactions and Equations Q.1. Why should magnesium ribbon be cleaned before burning in air ? Ans: Magnesium ribbon is a very reactive metal. When stored it reacts with oxygen to form a layer of magnesium oxide on its surface. This layer of magnesium oxide being a stable compound prevents further reaction of magnesium with oxygen. The magnesium is cleaned before burning in air to remove this layer so that the metal can be exposed to air properly. Q.2. Write the balanced
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Oxygen is produced as a by-product. This process is called photosynthesis. Temperature‚ carbon dioxide concentration and light intensity are factors that can limit the rate of photosynthesis. Plants also need mineral ions‚ including nitrate and magnesium‚ for healthy growth. They suffer from poor growth in conditions where mineral ions are deficient. Photosynthesis Photosynthesis is the chemical change which happens in the leaves of green plants. It is the first step towards making food - not just
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evaporate on surfaces such as taps and showerheads. Hard water is water that contains high quantities of calcium and magnesium ions. These hardness minerals‚ in the form of calcium carbonate and magnesium carbonate‚ precipitate out of hard water to form limescale [1]. Therefore‚ to clean or remove limescale‚ something needs to dissolve or soften calcium carbonate and/or magnesium carbonate‚ so it can easily wash
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