Water is an odorless‚ colorless‚ tasteless chemical compound that makes up well more than half of the human body. In addition to being prominent in the make-up of the human body‚ it also covers all but approximately 30% of the Earth’s surface‚ and can be found naturally in all three states of matter: liquid‚ solid and gas. Water is a covalent bond known most commonly by its empirical form; H2O. It can also be identified by the Lewis Dot Structural form shown in the figure in the upper right corner
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molecule of water A chemist’s view of the world is not as narrow as one might think! Yes‚ we start with the atom‚ and then go on to the rules governing the kinds of structural units that can be made from them. We are taught early on to predict the properties of bulk matter from these geometric arrangements. And then we come to H2O‚ and are shocked to find that many of these predictions are way off‚ and that water (and by implication‚ life itself) should not even exist on our planet! But we soon
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Chemistry Honors Which Type of Water is the Hardest? Hardness is the quality in water that is imparted by the presence of dissolved salts‚ especially calcium and magnesium. Hardness refers to how many mineral particles there are in water. The harder the water is‚ higher the contents of minerals. A geologist is a person who specialized in geologic research and study; a hydrologist is a geologist that studies the circulation‚ distribution‚ and properties of the waters of the earth and its atmosphere
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Bottled Water vs. Tap Water Water is vital to human life. Humans can live for several weeks on water alone. However‚ they cannot survive for more than a few days without it. In fact‚ a human’s body primarily consists of 55% to 78% water (Geri Walton.) Therefore‚ we need water. Life cannot exist without water. While some people prefer drinking bottled water‚ others prefer drinking tap water. In fact‚ controversy has been placed on the quality and safety of drinking bottled water versus drinking
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3 1) Number Properties i) Integers Numbers‚ such as -1‚ 0‚ 1‚ 2‚ and 3‚ that have no fractional part. Integers include the counting numbers (1‚ 2‚ 3‚ …)‚ their negative counterparts (-1‚ -2‚ -3‚ …)‚ and 0. ii) Whole & Natural Numbers The terms from 0‚1‚2‚3‚….. are known as Whole numbers. Natural numbers do not include 0. iii) Factors Positive integers that divide evenly into an integer. Factors are equal to or smaller than the integer in question. 12 is a factor of 12‚ as are 1‚ 2
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Colligative properties in your Coke Have you ever put salt on snow to get rid of it‚ or wondered how your car engine stays warm in cold weather? If you have‚ you’ve probably noticed that the salt quickly melts the snow‚ and you’ve wondered how the engine can stay warm‚ when the metal on the outside of the car is cold. These are just some of the many examples of how colligative properties work in our everyday lives. A colligative property is a property of a solvent that depends on the amount
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flows‚ and the water falls into the pond is where I did my observation. I took the time to sit on my property‚ at my grandparents house‚ which is located in the country side. I sat on a wooden bench over looking running water for 30 minutes observing the wilderness‚ and the surrounding sounds. The water was flowing fast down stream‚ with an abundance of rocks in the water. The water was completely clear‚ and made a rushing sound as it moved. I could see small fish swimming in the water. There was a
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Making Water Turbines Most Energy Efficient How does a wind turbine’s output vary with wind pressure (height of water)‚ the flow rate‚ size of the motor‚ and type of blade? Introduction There are many types of energy used today: Fossil fuels‚ coal‚ nuclear energy‚ solar energy‚ geothermal energy‚ hydrogen energy‚ hydroelectric energy‚ wind energy‚ and biofuels and biomass. Non-renewable energy sources such as fossil fuels and coal are diminishing since it cannot be recycled‚ unlike wind energy
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ganguly‚ Chattejee‚ Dey‚2011). Eichhornia crassipes‚ water hyacinth is a lignocellulosic material which is considered as a good source of biomass. water hyacinth is compose of different fiber s: lignin‚ cellulose‚ and hemicelluloses. INTRODUCTION Water lilies also known as water hyacinth are aquatic plants found in countries with
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Pond Water Paper DIRECTIONS STYLE TENSE: In all sections of the paper‚ present tense should be used to report background that is already established. For example‚ "The cell membrane is the barrier which separates the inside of the cell from the outside." Use future tense for work that you will do. For example‚ "This experiment will test the hypothesis that some anti-microbial agents can permeate the cell membrane during division to inhibit growth." Use past tense to describe the methods (what
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