slightly‚ amd turned yellow | Alka Seltzer | N/A | N/A | Bubbles vigorously | N/A | Breath | N/A | N/A | Bubbles vigorously and turns cloudy | N/A | Sarah Aguilera June 30‚ 2013 Lab # 4 Properties of Gases Purpose The purpose of this lab was to investigate and discover the physical and chemical properties of some gases. Throughout this lab the ability to identify if and when gasses were present was enhanced. Data Observations During the first step of this lab‚ when obtaining the hydrogen
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An intensive property is a physical quantity whose value does not depend on the amount of the substance for which it is measured. For example‚ the temperature of a system in thermal equilibrium is the same as the temperature of any part of it. If the system is divided the temperature of each subsystem is identical. The same applies to the density of a homogeneous system: if the system is divided in half‚ the mass and the volume change in the identical ratio and the density remains unchanged. According
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Magnesium Mg(Z=12) in Group 2 Alkaline Earth Metals The structure of the element: Giant lattice metallic structure of immobile positive metal ions surrounded by a ’sea’ of freely moving mobile electrons (so-called delocalised electrons). Physical properties: A moderately hard silvery-white solid; mpt 649oC; bpt 1090oC; good conductor of heat/electricity. Group‚ electron configuration (and oxidation states): Gp2 Alkaline Earth Metal; e.c. 2‚8‚2 or 1s2 2s2 2p6 3s2; (+2 only) e.g. MgCl2‚ MgO.
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temperature: 3223K (2950°C)``Density: 0.534g/cm3``Discovery Information Who: Johann Arfvedson``When: 1817 Where: Sweden``Name Origin Greek: lithos (stone). "Lithium" in different languages.``Sources Lithium is widely distributed but does not occur in nature in its free form. Because of its reactivity‚ it is always found bound with one or more other elements or compounds. Found in trace amounts in the minerals; spodumene (LiAl(SiO3)2)‚ amblygonite (Li‚Na)AlPO4(F‚OH))‚ lepidolite (KLi2Al(Al‚Si)3O10(F‚OH)2)
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“Is Density An Intensive Property Of Matter?” By: Mikal Hayden - Gates A. Introduction The first unit we learned in chemistry was Alchemy. In this unit I learned about the extensive and intensive properties of matter. An extensive property is a property of matter that depends on the changes of the substances shape or amount. An intensive property is a property of matter that doesn’t depend on the substances shape or amount. The purpose of this investigation was to prove that density is
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4s2 3d10 4p6 5s2 4d2 b) Zr4+ exists because Zirconium structure contains 40 electrons. For Zirconium to become chemical stable it must lose 4 electrons (to become a noble gas). So that is why Zr4+ is formed. Compare the stability of the zr atom and zr ion. the electron configuration for Zr is [Kr] 4d2 5s2. Ions are formed by losing electrons in outer shells to obtain more stable electron configurations like those of noble gases. By losing 4 electrons‚ it would have the electron configuration
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A detailed explanation‚ one paragraph or more in your own words‚ of the colligative property being discussed and why that property changes the way that it does when the amount of solute is increased. A detailed description‚ at least one paragraph‚ of a real-world application of the colligative property‚ including an explanation of how this application of the colligative property is important or useful to those affected. The real-world example must be one that was not mentioned in the lesson. An
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The Use of Nature as a Motif Rebecca stands as a perfect example of modern gothic literature. Gothic fiction can be characterized by vivid settings‚ an atmosphere of mystery‚ terror‚ violence and the supernatural. The book encompasses a murder‚ a terrible fire‚ and features a sinister servant; finally‚ the entire story is pervaded by the unrestful ghost of Rebecca herself. The novel also exemplifies the typical gothic novel by the use of weather and nature as a motif. Nature seems to skillfully
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The Molecules of Cells (Chapter 3 in your textbook) Without water and carbon-based molecules‚ no life as we know it! Carbon: The Backbone of Life • Living organisms consist mostly of carbon-based compounds Also‚ H‚ N‚ O‚ P‚ and S…… • Carbon is unparalleled in its ability to form large‚ complex‚ and diverse molecules. Why? Principal source of carbon on Earth? • Proteins‚ DNA‚ carbohydrates‚ lipids‚ and other molecules that distinguish living matter are all composed of carbon. C21H36N7O16P3S Coenzyme
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- To what extent is “A property of the Clan” a realistic play? - In your answer provide examples from the text and refer to techniques A property of the Clan is a realistic proportional of young Australian culture. The under age drinking‚ the slang and swearing‚ the biff and the beach going life is all features of Australian youths. It also shows the gender differences in Australia. Nick Enright the playwright of ‘A Property Of The Clan’ uses many techniques to portray the youths of Australia
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