1 Forms of Water 2 • Water consists of an Water is a Polar Molecule oxygen atom bound to -has oppositely charged two hydrogen atoms ends by two single covalent bonds. – Oxygen has unpaired & paired electrons which gives it a slightly negative charge while Hydrogen has no unpaired electrons and shares all others with Oxygen – Leaves molecule with positively and negative charged 3 ends Water molecules form Hydrogen bonds slightly positive charge hydrogen
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study finds that discharge of untreated sewage is the single most important cause for pollution of surface and ground water in India. There is a large gap between generation and treatment of domestic waste water in India. The problem is not only that India lacks sufficient treatment capacity but also that the sewage treatment plants that exist do not operate and are not maintained.[1] The majority of the government-owned sewage treatment plants remain closed most of the time due to improper design
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“Resentment” Many times when people are Isolated‚ they begin to feel resentment towards others. In the book A Child Called It by Dave Pelzer‚ he talks about his experience of growing up with an abusive parent. His relationship with his family was normal and loving up until around first grade. He began noticing his mother’s attitude changing towards him in a very negative way. It started with small punishments‚ and ranged to beating‚ and little “games”‚ as Dave Pelzer would call it. Throughout the
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Water‚ that magical substance from which all life springs forth‚ is essential to the very existence of every life form on earth. The role of water in the living organism has not changed since life’s first creation in salt water billions of years ago. The human body is 75% water‚ while the brain alone is comprised of 85% water. The blood‚ consisting of 92% water‚ carries oxygen and essential nutrients to capillaries where they are released into a water-based fluid that surrounds the cells called
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A Bear Called Paddington Characters: Mr. Brown‚ Mrs. Brown‚ Judy and Paddington the Bear Setting: Paddington‚ the car‚ the mall‚ Paddington Railway Station in London Mr. and Mrs. Brown are on a railway platform at Paddington Station‚ they discover something strange near the bicycle rack. They are still waiting for their daughter Judy when they see that the strange thing is a little bear. It looks like a very unusual kind of bear‚ it is brown in color‚ a rather dirty brown‚ and it is wearing
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------------------------------------------------- Water and Electrolytes Water constitutes 50-55% of a woman’s body weight and 55-60% of man’s weight. Water gives structure and form to the body‚ helps maintain body temperature‚ and also creates the necessary environment for cell metabolism. There are two compartments of body water‚ extracellular and intracellular fluid. Extracellular fluid (ECF) is water found outside of cells. Making up approximately 20% of total body weight‚ the ECF consists
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Lab 2 Report- Identification of Substances by Physical Properties The purpose of this lab was to see how certain substances; Naphthalene‚ Toulene‚ and and 2 unknowns (one liquid‚ one solid) react with 3 different solvents. To identify the two unknowns‚ testing needs to be done to find the density of both the liquid and the solid‚ determine the melting point of the solid‚ and the boiling point of the liquid. The Physical Properties of Pure Substances Table can then be used to compare the observed
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Practical 7: Determination of Hardness in Water | | | | | 10/3/2012 | | Aim: To determine the different types of hardness and alkalinity found in the water by titration methods. This is used to calculate the concentrations of calcium and magnesium found in the water. Principles: The hardness of water is determined to provide a measure of the quality of water for household and industrial use. Hard water is not a health hazard. Drinking hard water contributes a small amount of calcium
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conceal the meaning of the words we use now‚ in order to promote the rules and conventions of the community. They affect the behavior and attitude of the people in the community. The terms release‚ Stirrings‚ and the Ceremony of Loss are all expressions that have had an impact in The Giver. The term “release” is a frightening one in the story. To be released‚ is the highest level of dishonor in Jonas’s world. To be released is when one is kicked out‚ in a sense‚ of the community. The people are
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re-fuel‚ launch‚ educate and distribute?) Benefits. No pollution: A great benefit of using Hydrogen fuel cells is that they give off no pollution‚ and in fact produce pure water as a byproduct. Even though currently engineers are concentrating on producing hydrogen from natural gas‚ it will be for a short-term. Scientists are planning to have renewable environmentally-friendly ways of producing hydrogen in the future. Efficiency: Fuel cells generate electrical power quietly and efficiently. Approximate
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