beaker containing an unknown salt‚ x. The salt is crystalline‚ deliquescent and colorless. The student is asked to perform test and observation on the salt to determine the cation and anion present. HYPOTHESIS: Perhaps by using the flame test or reacting salt x with NaOH‚ or NH4OH the cation could be distinguished by observing the color changes or solubility while reacting salt x with H2SO4 or a mixture of copper turnings and concentrated sulphuric acid the anion of the salt could be found. AIM:
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The phrase “turning point” has a lot of meanings but personally‚ for me‚ it is a moment that caused me to realize what has always been in front of me. Turning point may also mean a time at which a decisive change in a situation occurs‚ especially one with beneficial results. Recently‚ one event became the turning point of my life and my beliefs. Last Tuesday‚ our class‚ II-St. Therese watched the film “The Encounter”. That movie marked a pivotal moment in my life. It helped me realize that Jesus
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Locations in the world facing water shortage P139 Fresh water is distributed ________ across the world thus the amount of fresh water per capita available can vary ____________. Fresh water available is calcucated by ______________________________________________. Water security‚ water _______‚ water stress and water ___________ are terms used to describe different levels of water availability. There is water security when there is _________ and ________ fresh water for human consumption. Natural
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Uses of water: 1. For drinking and for life processes. On an average‚ a man consumes about 60‚000 to 80‚000 litres of water in his lifetime. The body of an adult contains nearly 40 to 50 litres of water at any given time and water constitutes about 66% of the average body make up. Aqueous solutions fill the cells in the body. Nutrients‚ oxygen‚ and metabolic waste products are transported by blood‚ which is mostly water. Digested food is absorbed in the form of an aqueous solution. In plants too
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Academic Review of Salt: A World History Salt. We use it every day‚ we eat it‚ we love it; but sometime in the past‚ it caused many significant events. In Salt: A World History‚ Mark Kurlansky writes about the history of the world from a very peculiar topic. Salt. This is a very unique book. As in normal world history‚ the course follows culture and different empires and civilizations‚ but this one takes an entire new view. Salt‚ salt was‚ and still is‚ one of the most important minerals we have
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Water Conservation Water conservation is important because we depend on it. So many of our daily activities‚ like bathing or flushing the toilet‚ require fresh water. Our body even needs water to function correctly. Seventy-one percent of the Earth’s surface is made up of water. Ninety-eight percent of it all is salt water‚ leaving only two percent as fresh water. More than half of the fresh water is permanently frozen in glaciers or is in the form of snow. That leaves just a tiny
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____________ Properties of Water Lab Introduction: Water is a simple molecule‚ yet itʼs most vital to all living things. It has the highest specific heat of everyday substances. Unique properties of water enable it to carry out functions that no other substances can. In a neutral aqueous solution‚ five molecules of water are bonded together by weak hydrogen bonds. Furthermore‚ due to the electronegativity of oxygen‚ water is a polar molecule. Due to its polarity‚ water is classified as the universal
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increasing population and rapid economic growth as well as lax environmental oversight have increased water pollution. Therefore‚ deterioration of drinking water quality continues to be a major problem. Continuous emissions from manufacturing are the largest contributor to lowered drinking quality across the country. China’s major river systems exhibit the scope of the problem. Perhaps 70 percent of their water is so polluted that it has been deemed unsafe for human contact. In addition to untreated sewage
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Journal of Spatial Hydrology Spring Vol. 5‚ No. 1 Spatial Analysis of Urban Stormwater Quality M. Ghafouri1 and C.E. Swain Abstract Urban stormwater non-point source pollutants are recognized as a major cause of receiving waters quality deterioration. To date most research has focused on specifying temporal variations of stormwater quality parameters which includes high uncertainties and also increases the risk of pollution control structures failure. Traditionally‚ the temporal variations of quality
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glass vase clean. A Little Salt and Vinegar Vinegar is a very potent acid so you’ll need a little salt to dilute it. Start by making a cleansing solution. Take half a tablespoon of salt and add in just a few drops of white vinegar to turn it into a semi-solid paste. Avoid adding too much vinegar because then it will be too fluid and the vinegar might be too
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