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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Forsytes‚ an honour he shares‚ perhaps‚ with his father‚ James; he is the embodiment of the need to possess which regards all things--land‚ bouses‚ paintings‚ even women--in terms of ownership QUESTIONS AND TASKS 1. What is John Galsworthy’s manner of writing? What distinguishes him from other writers of his generation? 2. How is Galsworthy’s ironic attitude to the family relationship of the Forsytes expressed? 3. What is the author’s feeling towards his characters? Does he put it into words? 4
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alive or not? Is a virus ‚ prion‚ virod‚ or a rock a living organism? What is life? Biologist have studied what makes organism alive for many years and have come to the conclusion the there are nine characteristics of life. Each characteristic has a property which applies to how and organism is alive. Life characteristics are as follows: order‚ metabolism‚ motility‚ responsiveness‚ reproduction‚ development‚ heredity‚ evolution‚ and adaptation. All of the characteristics of life together are what
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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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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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Continue of Properties of Life: in sexual reproduction‚ two parents contribute genetic information in the form of a gamete. The gametes fuse and an offspring is produced from the fertilized egg. The fourth property of all living organisms possess is that populations of organisms evolve over many generations. Adaptations are inherited characteristics that allow organisms to survive in a particular environment. The seahorse has evolved and adapted camouflage. Which property is NOT a property of all
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Soil properties Soil depth Soil texture Structure Colour Soil pH level Nutrients Dispersibility Soil organic matter and soil carbon sequestration Permeability and porosity Water holding capacity Soils vary in their suitability for specific purposes. For example‚ in Queensland a deep‚ fertile clay soil is suitable for intensive agriculture but a shallow‚ sandy soil is better suited to grazing and growing native trees. The suitability of a soil for a particular purpose can often be
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Dawson street. Andy first painting was in 1937. As time has pass Andy as a little kid was sick and had to fight for life. In this case Andy had to withdraw school because he was sick. in June 9 1949 Andy moved to New york and began his carreer there. He was a magazine illustartion and advertising. In the 1950’s warhol was an early adapter of the silk screen printmaking process as a technique for making paintings. He gained fame for his whimsical ink drawings of shoe advertisment. Warhol work both
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Cognitive Properties Ashley Weber Principles of Chemistry 2 Experiment 1 02/02/2015 Abstract: Several experiments were performed to observe the colligative properties. This includes the freezing point depression‚ and osmotic pressure. Two ice baths were made‚ one with pure water‚ the other with salt water. The lowest temperature was then record for each bath and compared. The salt water had a lower freezing point than the pure water by 2 degrees which supports the hypothesis that solutions have
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LAREDO COMMUNITY COLLEGE Science Department CHEM 1411-1412 Practice Test Ch. 7 Periodic Properties Newton Name Instructions: Circle the letter of the BEST answer(s). Some questions may have multiple answers; be sure to include all correct answers. Each correct question is worth two (2) points. 1) __________ is credited with developing the concept of atomic numbers. A) Lothar Meyer B) Ernest Rutherford C) Michael Faraday
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