water exists in liquid‚ solid‚ and gaseous states water referred to universal solvent ( bipolar molecule enables it to dissolve a wide variety of substances) ice floats ( temperatures drop molecules come together as a solid‚ elections repell (the molecules get less close thus making the ice have less density than water. If this did not occur ice could sink and destroy living organism. (sea animals) Thermal properties Water resist temperature change‚ due to high specific heat which in turn helps our body
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Chemical Periodicity Engr. Imelda Galera De La Salle University-Dasmariñas Dasmariñas‚ Cavite Philippines ABSTRACT Chemical periodicity was demonstrated using different samples of elements from Group IA‚ IIA and IVA. These samples are: Li2CO3‚ Na2CO3‚ K2CO3‚ MgCO3‚ CaCO3‚ BaCO3‚ Carbon‚ Tin‚ Silicon and Lead. Each sample was placed in a test tube‚ (one sample and one test tube) and the physical color‚ appearance and state was defined. Water was used to test the solubility of the element
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Chemical Reactions Chemical Change • reorganization • original substances form new substances with different formulas • may or may not involve a change of state • symbols used to describe chemical reaction are known as a chemical equation • Chemical equations do not have equal signs (=) they have an arrow Chemical Equations • Must follow the Law of Conservation of Matter • atoms can neither be created or destroyed during a chemical reaction • What
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Rights above and below land The concept of “land” only extends upwards to a height necessary for the ordinary use and enjoyment of the surface (Bernstein v Skyviews & General Ltd [1978])Trespass above land at lower levels: “not whether the incursion actually interferes with the occupier’s actual use of the land at the time‚ but rather whether it is of a nature and at a height which may interfere with any ordinary uses of the land which the occupier may see fit to undertake” (LJP Investments v Howard
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1. What is the ability of one substance to dissolve in another substance called? The ability of one substance to dissolve in another is called solubility. 2. What are the three properties of matter? The three properties of matter are gas‚ solid‚ and liquid. 3. What is matter made up of? Matter is made up of tiny particles. 4. Compare and contrast the movement of particles in solids‚ liquids‚ and gases. Solids: They move back and forth. They do not change places with each other
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Major Biological molecules There are many Biological molecules but this discussion will be about the 4 Major biological molecules and how they are used in a living system. This discussion will also include major subtypes of molecules. The four Major biological molecules are Carbohydrates‚ Lipids‚ Proteins‚ nucleic acids. Carb is an abbreviation for carbohydrates. The body breaks down carbohydrates into simple sugars. Carbohydrates are easily used for energy by the body. The nervous system and brain
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Environmental Medicine Organic Foods Contain Higher Levels of Certain Nutrients‚ Lower Levels of Pesticides‚ and May Provide Health Benefits for the Consumer WalterJ.Crinnion‚ ND WallerCrinnion‚ ND~ 19S2graduateofBastyr University; practice since 1982 with a special focus on treating (hronic diseases caused by environmental toxit burden; conducts post-graduate seminars in environmental medicine; professor and chair of the Environmental Medicine Program‚ Southwest College of
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Love Marriage Vs. Arrange Marriage Fawn Weaver‚ writer of the New York Times bestselling author in 2010 “The Happy Wives Club” said‚ “The greatest marriages are built on teamwork. A mutual respect‚ a healthy dose of admiration‚ and a never-ending portion of love and grace.” These points could be considered part of a strong and long last love marriage. However‚ nowadays it is so difficult to maintain a successful union‚ but according to my research from the book ‘Marital Counseling’ by Hirsch Lazzar
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English assessment By Maya Angelou (500 words) What you looking at me for? 1930s American teachers Marguerite that black is ugly and that the abuse she suffers is her own fault. It is own in her teens that Marguerite emerges from the private world of muteness into which has withdrawn and confronts the prejudice around her. She is no longer a victim‚ but a champion of her own identity. Maya Angelou’s classic autobiographical account of her childhood is a powerful and moving evocation of
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Lab report #1 on chemical and physical properties/ changes Introduction Summary: The purpose of this experiment is to allow students to understand how to differentiate physical and chemical properties and reactions of matter by observing changes of matters under circumstances. Physical properties are properties of matter that can be observed without changing the composition of the matter‚ including the volume‚ mass‚ color‚ density‚ and shape of it. Chemical properties include the matter’s
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