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. Reaction of element with oxygen: Burns
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Project – I DESIGN OF GEOTHERMAL HEAT PUMP A Project Report Submitted By Peter Galimutti (2474762) Neeraj Pastakia (2462895) Balasubrahmanyam Vanum (2474858) (MCE 622: Energy Conversion) MASTER OF SCIENCE IN MECHANICAL ENGINEERING Fall 07 Under the esteemed guidance of Dr.Earnest N.Poulous (Associate Professor) DEPARTMENT
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Danielle Silverstein PHY 101 Section 10497 March 4‚ 2013 Light up this World Purpose: In this lab experiment‚ LED lights will be used to show how when E&M radiation is absorbed‚ the energy is converted to heat. A drop of isopropyl alcohol will absorb light energy of different colors‚ and the evaporation rate of the alcohol will be measured. The key to this lab is the evaporation rate is directly related to the energy of the light shining on the drop. Materials: * * LEDs
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Physical and Chemical Properties Purpose: To investigate and learn the physical and chemical properties of pure chemical substances. Procedure: I used various different tools to investigate the different physical and chemical properties‚ such as blue and red litmus papers‚ beakers‚ and wells. Data Tables: Substance Name Color Odor Heat Effect Cold H2O Hot H2O Litmus Test Dilute HCl Dilute NaOH Mg Silver None None None Not soluble‚ small bubbles Red litmus paper Heat; smoking None Cu Gold
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generally low. Risk of hospitalization costs‚ accidents at home or in motor vehicle‚ damage to our homes‚ burglary and loss of property‚ income interruption for the family as a result of demise of breadwinner(s) are common insurable risks to which individuals are exposed. Businesses are exposed to fire and related perils risks‚ income interruption as a result of fire‚ damage to property among others. If a risk is not transferred to an insurance company then the individual or firm assumes the risk themselves
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Lab 4: Physical & Chemical Properties Purpose: The purpose of this lab is to distinguish if different substances react to heat or cold and if a solution is added to it during the experiment will it change the substance or leave it the same. Throughout the different tests each substance is put through a series of tests to determine if it changes in any way in regards to color‚ odor‚ or consistency from the start of the experiment. The results will be documented in table 1. Data Table 1: Solubility
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According to economic theory‚ what determines the demand for a product? According to economic theory‚ the demand for a product is determined by four factors; popularity or fashion‚ income‚ the age distribution of a country and the price of related goods. The most important of these being the income. There is a positive relationship between the income of the consumers and the demand of a normal good. The disposable income of any consumer determines how much money they have to spend on goods. With
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“Genes determine intelligence” critically discuss the contemporary evidence. Research on intelligence has been around for centuries one of the earliest known testing is said to be as early as 2200 BC where Chinese administrators tested civil servants periodically to make sure they acquired the necessary abilities/skills for their job. Today psychologist now test on weather intelligence is genetically induced and if so to what extent by taking into account environmental factors‚ using methods like
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similar‚ which had many aspects on their transformation of mechanisms. Microstructure of bainite seems to be darker than the mastenisite under a microscope. The reason behind bainite structure became useful was because of its hardness. There are few Heat treatments that steel can be tested by such as Annealing‚ quenching Harderning‚ and Normalizing. Body Bainite is A combination of ferrite and cementite in ferrous metals that is harder than pearlite. Bainite contains needlelike grain structures
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Physical and Chemical Properties Chem 107 6-4-2013 A pure substance or chemical substance is a material that is homogeneous. It has consistent properties throughout the sample.” Pure substances can be described by both physical and chemical properties”. Physical properties can include‚ color‚ odor‚ melting point‚ boiling point‚ and solubility in various solvents‚ etc. The observation of these physical properties does not involve any chemical change in the substance‚ it is still the same
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