elements‚ while solid mixtures such as Fe filings and S powder were classified as heterogenous because after combining it their properties were still distinguishable from each other but when heated it is already considered as a solution. Water and Sodium Chloride were compounds given they are two or more elements‚ while mixing them we were able to create a solution. The Nacl that dissolves into H20 are techinically dissociated into ions but after heating it the table salt comes back without H20.
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Results and discussion: I. a. How would you compare that relative reactivity of Na and k -Sodium and potassium react somewhat similar when reacting with water however they are slightly different. Sodium moves because of the hydrogen coming off of it and has a low melting point while potassium’s reaction is faster and enough heat is produced to set light to the hydrogen coming off of it. Each leaves a pink color hue in the water. Discuss the similarities and differences in the behavior of the metals
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Nicholas Rossetti Mrs. Mirro Humanities III 6 September 2010 In Robert Greenwald’s documentary film‚ Wal-Mart: The High Cost of Low Prices‚ A strong and apparent negative connotation is established by his presentation of facts and his emotional appeal. Throughout his documentary‚ Greenwald uses first hand accounts from people negatively effected by Wal-Mart to appeal to his audience’s emotions. Through this he effectively tries to persuade the audience that walmart is corrupt in its nature
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proteins are glucose carriers. The rate did not change because sodium chloride doesn’t help nor hinder the diffusion of glucose. Activity 3 1. The pressure will increase due to the increased concentration of sodium chloride. The pressure increased. 2. Neither one requires ATP. Simple diffusion is the movement of a solute from an area of HIGH to LOW solute concentration but osmosis is the movement of water from an area of LOW to High solute concentration. 3. Because water moves toward
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Clostridium Difficile People getting medical care can catch serious infections called healthcare-associated infections or HAI’s. One type of HAI which is caused by the germ Clostridium Difficile or C-Diff. In 2015 it was estimated almost half a million infections in the United Ststes‚ and 29‚000 died within 30 days of the initial diagnosis. Those most at risk are older adults‚ who take antibiotics and also get medical care. The CDC provides guidelines and tools for the healthcare population to help
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present in commercial bleach. Introduction Many commercial products‚ such as bleaches and hair coloring agents‚ contain oxidizing agents. The most common oxidizing agent in bleaches is sodium hypochlorite‚ NaClO (sometimes written NaOCl). Commercial bleaches are made by bubbling chlorine gas into a sodium hydroxide solution. Some of the chlorine is oxidized to the hypochlorite ion‚ ClO-‚ and some is reduced to the chloride ion‚ Cl-. The solution remains strongly basic. The chemical equation
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ground level are the result of the rapid release of energy into the air‚ causing the air to expand faster than the speed of sound. This produces a shock wave‚ a sonic boom. The colors are produced by heating metal salts‚ such as calcium chloride or sodium nitrate‚ that emit characteristic colors. The atoms of each element absorb energy and release it as light of specific colors. The energy absorbed by an atom rearranges its electrons from their lowest-energy state‚ called the ground state‚ up to a
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but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood‚ paper‚ oil‚ clothing‚ etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Sodium carbonate Odorless white crystalline powder or lumps. Slightly alkaline (bitter) taste. pH (of freshly prepared 0.1 molar aqueous solution): 8.3 at
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HYPERNATREMIA) AND SODIUM BALANCE (HYPOVOLEMIA AND EDEMA) Literature review current through: Sep 2013. | This topic last updated: ene 15‚ 2013. 1. INTRODUCTION — The plasma sodium concentration is regulated by changes in water intake and excretion‚ not by changes in sodium balance. hyponatremia is primarily due to the intake of water that cannot be excreted hypernatremia is primarily due to the loss of water that has not been replaced hypovolemia represents the loss of sodium and water edema
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Assignments in Science Class X (Term II) 4 Carbon and its Compounds IMPORTANT NOTES 9. Unsaturated organic compounds : Organic compounds in which a double or a triple bond exists between two carbon atoms in a carbon chain‚ are called unsaturated organic compounds. 10. Hydrocarbons : Organic compounds which contain only carbon and hydrogen atoms are called hydrocarbons. 11. Straight chain hydrocarbons : Hydrocarbons‚ in which all the carbon atoms are linked to one another in a straight chain
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