microscopic level therefore it being considered a chemical change. 75. What is meant by the term “hard water”? How can hard water be softened? Water is to be considered “hard” if it contains unusually high levels of dissolved magnesium‚ and calcium ions. This can be an issue for some people because hard water reacts with soap and it forms an insoluble salt or curds‚ which then in turn may leave your clothing looking yellow. Hard water can be softened by filtering your water through a household
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people to look for natural alternatives. To prevent and reverse Osteoporosis‚ Elias (2013) highly recommends exercising‚ taking balanced minerals like calcium and magnesium‚ vitamin K‚ D‚ and R‚ following a healthy diet‚ and maintaining stress levels low with meditation. Elias (2013) explains that leafy greens‚ seeds and nuts high in calcium are a good substitute for dairy products since dairy can eliminate essential minerals from the body rather than adding them because they are difficult to
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Complications Hip and spine fractures can cause severe pain. These fractures can occur even with insignificant trauma. In old age can lead to prolonged bed bound state Prevention Healthy diet rich in proteins and calcium‚ vitamin D can prevent osteoporosis. Maintain appropriate weight. Daily exercise Diagnosis History of bony pains‚ stooped posture‚ fractures due to insignificant trauma in older age should raise the suspicion. Osteoporosis is diagnosed by DEXA
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measure of the amount of calcium and magnesium salts dissolved in water4. Hard water is water that contains large amounts of dissolved calcium and magnesium cations‚ and soft water is water that little or none of the cations10. The hardness of water is important because it affects numerous aspects of our life. Water hardness has an effect on the way water tastes‚ it creates problems with plumbing and industries‚ and the water hardness has an effect on cleaning/washing10. The calcium and Magnesium that
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functions of nutrients help our bodies to maintain its daily functions. Iron‚ for an example is a very important mineral. This particular mineral is needed in the body because this would put us at risk of having anemia. Other minerals sources are calcium‚ phosphorus‚ and magnesium‚ which are needed for the bones. There are other minerals such as fluoride‚ which is important for the teeth as well as the bones. Then there is iodine‚ which is needed for the synthesis of the thyroid hormones. The other
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carbonate. c. Calcium metal reacts with water to form calcium hydroxide and hydrogen gas. d. Potassium nitrate decomposes to form potassium nitrite and oxygen. e. Barium metal reacts with Iron (III) sulfate to produce barium sulfate and iron metal. f. Barium chloride reacts with sodium sulfate to produce barium sulfate and sodium chloride. g. Bismuth (III) oxide and zinc metal react to produce zinc (II) oxide and bismuth metal. h. Calcium metal reacts with phosphorus to produce calcium phosphide
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identify trends of reactivity down the Group-2 Equipment required: 2 x250 cm3 beaker Funnel 2x boiling tubes Crucible tongs Calcium granules Magnesium ribbon Magnesium powder Spatula Universal Indicator Thermal mat Filter paper Safety: Wear eye protection. Magnesium and calcium are highly flammable. Calcium hydroxide is an irritant. Group 2 elements Calcium Strontium Magnesium Beryllium Barium Radium Introduction: The Group 2 elements are all metals with a shiny‚ silvery-white
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a childhood bone disorder in which bones soften and become prone to fractures. The main cause of rickets is a lack of vitamin D. Not having enough calcium in one’s diet can also cause rickets. Some childhood kidney and liver diseases can cause rickets. There are many symptom of rickets such as Bone pain‚ Bone tenderness‚ Bones break easily‚ Low calcium blood levels‚ Soft skull‚ there may be spinal‚ pelvic or cranial deformities‚ and toddlers may have bowed legs. Some causes of rickets is Genetic defect
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protected by a hard shell. Garden snail also known as Helix aspersa. The body of the snail is long‚ moist and slimy. It has a shell to protect its soft body. The shell of a snail is made up of calcium carbonate. The shell becomes very strong and remains that way as long as the snail consumes a diet that is full of calcium. When the snail is disturbed‚ it simply withdraws or pulls itself back into its shell. The snail also retreats into its shell and seals the entrance in dry weather to protect its body from
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Experiment and Observation: In this experiment I developed a familiarity with the concept of water hardness‚ practice a titration technique using a titrator. By finding the total hardness‚ I was analyzing the water sample for the combined concentration of calcium and magnesium ions. When making the buffer‚ the sample turned blue‚ allowing me to get a sense of what color I would be looking for later on in the experiment. I tested my tap water for the total hardness by adding EDTA solution through a titrator
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