4. Determine whether the luster of each of the following samples in your kit is metallic or nonmetallic. If nonmetallic‚ indicate whether it is vitreous‚ pearly‚ greasy‚ waxy‚ resinous‚ or dull. a. Garnet metallic‚ pearly b. Graphite nonmetallic‚ vitreous c. Feldspar nonmetallic‚ resinous d. Calcite metallic‚ waxy e. Mica nonmetallic‚ dull 5. Based on the samples of fluorite and quartz in Figure 1.3 (p. 4 lab book)‚ why isn’t color a diagnostic property
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worksheet. Help: The minerals in the virtual lab are numbered to conceal their identities‚ but the minerals will include seven of those listed below. To help you identify them‚ refer to the Mineral Identification Job Aid. Borax Calcite Corundum Graphite Gypsum Orthoclase feldspar Pyrite Quartz Talc Topaz 4. Post Part 1‚ Part 2‚ and Part 3 in this worksheet as an attachment to your Assignment Section. Delete the introductory instructions in this worksheet before you submit it to your instructor
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4/6/2014 Thermochemistry and calorimetry Chem 1 General Chemistry Virtual Textbook → Chemical Energetics →Thermochemistry Thermochemistry and calorimetry Chemical Energetics and thermodynamics - 4 The heat that flows across the boundaries of a system undergoing a change is a fundamental property that characterizes the process. It is easily measured‚ and if the process is a chemical reaction carried out at constant pressure‚ it can also be predicted from the difference between the
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line relay designed for use (typical application include repeater‚ control & Indication functions) railway signalling circuits. The style QN1 forms the basis of the Q range relays. Fitted with a maximum of sixteen independent Silver Impregnated Graphite to Silver contacts‚ this relay conforms to BRB Spec. 930. The following table shows the available range Product Code Nominal Working Volts Contacts Coil Resistance Ohms Volts Maximum Full Operating 40 40 40 40 40 19.2 19.2 19.2
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Chemical Engineering department for guiding me through the seminar preparation and the University for providing me the platform to present this seminar. Abstract Carbon nanotubes are allotropes of carbon. They are one-atom thicksheet of graphite rolled up into a seamless cylinder with diameter of the order of a nanometer. Their name is derived from their size‚ since the diameter of a nanotube is on the order of a few nanometers (approximately 50‚000 times smaller than the width of a human
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BUILDING DEPARTMENT | U10BD1035| M. ABDUSSALAM | 5/15/2013 | Write on the following building materials * Steel * Cast iron * Aluminium * Pipes used in building construction * Light roofing materialsConsidering the following; * Definition * Sources * Types * Uses * Advantages/disadvantages * Limitation | STEEL AS A BUILDING MATERIAL Steel is a structural material which consists mostly of iron and carbon. It can‚ however‚ contain other additives which might change
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the wood‚ clean‚ and dry out the wood. Eventually‚ this will be the pencil body‚ which is necessary. Without the body of a pencil‚ there could be no pencil at all. Therefore‚ the loggers‚ who deal with the wood‚ are essential for making a pencil. Graphite or zinc miners are
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Episode 112: Resistivity In this episode‚ students learn how and why the resistance of a wire depends on the wire’s dimensions. They learn the definition of resistivity and use it in calculations. Summary Discussion: Variation of resistance with length and area. (5 minutes) Student experiment: Variation of resistance with length and area. (30 minutes) Discussion: Variation of resistance with length and area. (10 minutes) Student experiment: Measurement of resistivity. (30 minutes) Student
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Chemistry 101 Chapter 6 THERMOCHEMISTRY · Thermochemistry is the study of the quantity of heat energy released or absorbed in a chemical reaction. Example: the burning of fuel: is a heatevolving reaction · Heat : · Energy: is a form of energy the potential to do work (to move matter) exists in many different forms: Electrical energy Kinetic Energy (energy of motion) Light energy Heat energy Chemical energy (energy of substances) · Different forms of energy can be interconverted
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diagram. Each element can be used once‚ more than once or not at all. Write down the symbol for the element which (i) has six electrons in its outer shell. (ii) is a halogen. (iii) is a metal which reacts rapidly with cold water. (iv) has two forms‚ graphite and diamond. (v) is in Group II of the Periodic Table. (vi) makes up about 80 % of the air. ....................................... ....................................... ....................................... .................................
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