Periodic trends across the period three oxides Clare Smerdon Access to Higher Education Science 08/04/2015 Julie Day Periodic trends across the period three oxides Objective This experiment is intended to explore the relationship between the physical properties of the oxides of Period 3 elements (sodium to chlorine) and their structures. Argon is obviously omitted because it doesn’t form an oxide. Hypothesis This experiment will be investigating the following
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CHEMISTRY Guess Paper – 2013 Class – XI Subject - CHEMISTRY MAX MARKS=90 ……………………………………………………………………………………… General instructions: All questions are compulsory. Marks for each question are indicated against it. Questions number 1to 8 are very short –answer questions‚ carrying 1 mark each. Answer these in one word or about one sentence each. Questions number 9 to18 are short –answer questions‚ carrying 2 marks each. Answer these in about 30 words each. Questions number19 to27
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my trip to shimla was the best man!! we had so much of fun in shimla and also great Essays for Science: Chemistry Building Blocks of Science THE periodic table of the elements—the 96 metals‚ nonmetals and gases that form everything in the material universe— is the blueprint of the atomic future... Calorimetry: Specific Heat and Heat of Solution Summary These experiments were conducted to find the specific heat of a metal as well as the heat of solution of a solid. Both experiments required
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Lithium‚Sodium‚Potassium‚Rubidium‚Caesium and Francium are all part of group 1.They are metals that can be easily cut.After being cut‚it is shiny but it quickly tarnishes due to the fact that the metal reacts quickly with oxygen or water.The shiny surfaces of Sodium quickly tarnishes more quickly than Lithium and Potassium more tarnishes more quickly than Lithium.This shows that the reactivity increases as we move down the group. Figure 1 Elements Melting point Boiling point Thermal
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Homework #2 1. How many electrons would a typical neon element have? How many electrons does a typical lithium element have? Use that information to qualitatively describe the difference between the emission spectrum of neon and lithium. 10‚ 3‚ the greater the number of electrons the greater the number of emission lines on the spectrum 2. The dominant element present in the star’s spectrum to the right: Hydrogen 3. Is a toaster oven filament an example of an emission‚ absorption
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expenditure. Tesla is not expected to become profitable for another 18 months (Taylor‚ 2011). There is a relatively low barrier to entry due to the higher demand for environmental friendly vehicles and with other outlets for available technology for lithium-ion batteries‚ it is a level of playing field where any company can replicate (Shirouzu‚2011). This is an external threat that Tesla faces because this technology is easy to imitate by competitors. Power of Buyers According to the Tesla 10k‚ they
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of cellulose (which is the major constituent of regular paper‚ among other things) infused with aligned carbon nanotubes. The nanotubes act as electrodes; allowing the storage devices to conduct electricity. The battery‚ which functions as both a lithium-ion battery and a supercapacitor‚ can provide a long‚ steady power output comparable to a conventional battery‚ as well as a supercapacitor’s quick burst of high energy—and while a conventional battery contains a number of separate components‚ the
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charging or discharging. Especially for Lithium batteries‚ it can prevent the overcharging which may lead to an explosion due to the user’s fault. It can disconnect the circuit automatically and alarm once detecting any malfunction. All the programs of this product were controlled through two way linkage and communication‚ to archive the maximum safety and minimize the trouble. All the settings can be configured by users! Internal independent Lithium battery balancer iMax B6 employs an individual-cell-voltage
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develop just such a battery that could free gadget makers from the constraints of the standard lithium ion battery. Well‚ that’s the plan‚ anyway. Using zinc instead of lithium‚ along with screen-printing technology‚ Imprint Energy is already churning out low volumes of its ultra-thin‚ energy-dense‚ flexible‚ low-cost‚ rechargeable batteries for pilot customers. It’s hard to make standard lithium ion batteries thin and flexible‚ explains Imprint Energy Chief Executive Officer Devin MacKenzie
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world. These smart shoes are designed to specify the distance‚ the speed and the hearth bits of the user during their activities. This new product is combination of shoes‚ treadmill‚ and the heartbeat rate indicator. The smart shoes are powered by a lithium battery‚ and have an internal LCD to showing heartbeat‚ distance‚ speed and charge of the battery. For more information please refer to product description. The estimated value for this new product is 350 USD. The problems that currently faced by
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