without metal. The metals we use in our houses are mostly for keeping them sturdy. Though there is one problem we have when it comes to metals. That problem is that they rust. Metals rust when they are in contact with oxygen‚ and water. They rust much faster when they are in contact with salt water‚ and acid rain. We chose to see what would happen to various metals when they contacted with salt water. When the electrons move around in the salt water‚ it causes the metals to rust. The metals we chose
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Density of Metals Lab 1. Purpose The purpose of this lab was answered in 4 questions‚ and their answers are here shown. The density of the metals we used were 5g/cm3. The density of a metal piece does not depend on its size‚ it depends on the total mass and total volume. The most accurate way of determining density is dividing mass by volume. You can’t identify metals by their density. It can help you narrow the options down‚ but you can’t identify a metal by using only its density. 2. Question
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Ankit Shingala Dr. Campagnolo Chemistry H September 24‚ 2013 Lab on Density of Four Metals Conclusion In this lab we studied the densities of four different metals using a caliper‚ a digital scale‚ and a calculator. Three metals were pure elements like copper‚ iron‚ and aluminum. The fourth metal was an alloy which was brass. The purposes of this lab were to demonstrate that different metal elements have different densities‚ and that alloys have densities somewhere between those elements that
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the identity of the metals‚ I was capable of deducing a definite‚ possible identity for the golden metal‚ however‚ I could not provide a definite‚ possible identity for the silver metal. Conversely‚ the results of the experiment themselves‚ whether volume‚ mass‚ or density‚ proved insufficient in my attempts to distinguish the identities of the metals. Thus‚ during the experiment‚ I also observed the color of the metals‚ and used these observations in my assessment of the metals. The five trials for
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Chemistry Practical: Activity Series of Metals Introduction: The chemical activity of a metal is directly related to its practical use. In this investigation you will investigate the chemical activity of metals with oxygen‚ water‚ acid and alkali‚ to rank metals in order of their activity. Aim: To observe the reactivity of metals in order to determine the activity series of metals. Risk Assessment: In this investigation‚ hydrochloric acid solution is used which is toxic by all routes of
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Metals and Rusting Iron Alquero Rollon Title “ The Effect of Various Metal Activity (Zinc (Zn)‚ Magnesium (Mg)‚ and Copper (Cu)) in the Color of Rainwater and Amount of Rust in the Iron Nail “ Hypothesis If the type of metal that has the highest activity will be used ‚ then there will be the least amount of rust found in the nail and the color of the rainwater would be the lightest. Independent Variable • Types of metals used in wrapping Title: “ The Effect of Various Metal Activity (Zinc
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Exploring Transitions by Character in Tom Brennan Brennan Family (Immediate) Character Transition being Explored Quotation/page no./analysis of language or technique Tom Brennan Living with grandmother in new town of Coghill after leaving Mumbilli. struggles with house rules and expectations such as saying grace and sharing grandmother’s cooking(KG) images of saints and prayers at Gran’s house going to Mass (Pp1568) ‘But we weren’t home. We were here. Here in my grandmother’s dark
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half are found in China. Canada and Russia also have large reserves. A significant amount of tungsten is recovered through recycling of scrap tungsten products. [1.] Tungsten is classified as a "Transition Metal" which is located in Groups 3 - 12 of the Periodic Table. An element classified as transition metals are ductile‚ malleable‚ and able to conduct electricity and heat. Tungsten is mixed with carbon to make a very strong‚ very resistant material called tungsten carbide. Tungsten carbide is used
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−dN1/dt = N1B1->2 ρ(ν) • Rate of absorption is the sum of the rated due to stimulated emission and spontaneous emission: −dN2/dt = N2B2->1 ρ(ν) + N2A2->1 where B1->2 is the Einstein transition probability for induced absorption‚ B2->1 is the Einstein transition probability for induced emission‚ A2->1 is the Einstein transition probability for spontaneous emission ρ(ν) is the radiation density at frequency ν‚ N1 and N2 are the populations in states 1 & 2. • At equilibrium (steady state)‚ we have: N2{A2->1
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A transition economy or transitional economy is an economy which is changing from a centrally planned economy to a market economy.[1] Transition economies undergo a set of structural transformations intended to develop market-based institutions. These include economic liberalization‚ where prices are set by market forces rather than by a central planning organization. there is a push to privatize state-owned enterprises and resources‚ state and collectively run enterprises are restructured as businesses
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