Unit 2 Home Labs Goals: • Read Safety • Perform Changes: Physical or Chemical Lab • Perform Special Physical Properties of Matter Lab • Perform Paper Chromatography Lab Turn-in: 1) Changes: Physical or Chemical Lab - Completed Procedure / Observations‚ questions‚ and a written description of most important concept that you learned in the discussion section. 2) Special Physical Properties of Matter Lab – Completed Procedure / Observations‚ questions‚ and
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Benzophenone has a similar polarity to hexane. 3. Part B. Solubility of Different Alcohols. Use your observations to complete the following table‚ rating each system as soluble‚ insoluble‚ or partially soluble. Alcohol Methyl alcohol Water Hexane 1-Butanol 1-Octanol 4. What explains the solubility trends that you can deduce from the results for the tests done in each solvent? A. B. C. Methyl alcohol is more like water in its structure Each alcohol can form hydrogen bonds with water As the carbon
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Purpose: To find out the densities and to find out the name of the unknown metals. (Based on the extensive and intensive properties) Check up the words mass‚ volume‚ density‚ extensive properties‚ and intensive properties. Where do the units for mass and volume) come from and what do they mean? What is the density of distilled water? What is Archimedes principle? Does temperature affect the density of a solid? Liquid? Gas? Materials: Safety glasses‚ 10‚ 25 or 50 mL graduated cylinders
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Regents Chemistry Quarter 1 Midterm Review 1. The percent by mass of oxygen in Na2SO4 (formula mass = 142) is closest to 1) 11% 3) 45% 2) 22% 4) 64% 2. Given the unbalanced equation: __Al(s) + __O2(g) → __Al2O3(s) 3. 4. 5. 6. 7. balance the equation using smallest whole number coefficients. The percent by mass of aluminum in Al2O3 is approximately 1) 18.9 3) 47.1 2) 35.4 4) 52.9 What is the approximate percent composition by mass of CaBr2 (formula mass = 200)
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1. Why are spindle fibers important for mitosis? (5 points) Spindle fibers work as a path for chromosomes to travel(Campbell‚ 2009). 2. State the four bases that make up DNA. (4 points) a. (A)-Adenine b. (G)-Guanine c. (T)-Thymine d. (C)-Cytosine (Campbell‚ 2009). 3. What are the two base pairs? (2 points) a. AG b. CT 4. Answer the following questions: a. Define the term crossing over. (3 points) The phase in meiosis where chromosomes exchange segments of genetic materials (Campbell‚ 2009). b. Explain
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(dialysis tubing). The experiment will show how molecules in solution move from areas of higher concentration to areas of lower concentration in the attempt to reach homeostasis in different circumstances. Introduction: The main purpose of this lab was to observe diffusion and osmosis. This is demonstrated using dialysis tubing and a combination of monosaccharaides‚ disaccharides‚ water (H20)‚ and sodium chlorine
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reengineering project? (Points : 1) Cost and risk Performance of existing processes for a baseline Strategic analysis and workflow Inputs and outputs | 2. Enabling organizations to make continual improvements to many business processes and to use processes as the fundamental building blocks of corporate information systems is the goal of (Points : 1) BPM. BPR. reengineering. workflow management. | 3. The _____ is directly responsible for the individual systems project. (Points : 1) project management
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______________________ 1. a. Calculate the value of a 4.65% five-year €1‚000 bond‚ if you know that the bond is rated AAA and the typical YTM for such bonds is 6.25%. (6 points) b. How will the value of this bond change (in %) if yield increases to 7%? (use duration) (10 points) 2. a. Your friend is moving to another country next month and is considering what to do with her current apartment in Vienna. Her real
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PointsAshley Mita History 2020 Wilson’s Last Seven Points The Fourteen Points were listed in a speech delivered by President Woodrow Wilson of the United States to the United States Congress on January 8‚ 1918. This speech was intended to reassure the country that the war was being fought for a good cause and for peace in Europe after World War I. However‚ that was not necessarily correct‚ and later on caused more issues. The eighth point Wilson discussed was that France was invaded by Germany
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Touch Points of Singapore Airlines Inspiration and choosing Booking‚ waiting and check-in Booking‚ waiting and check-in Touch Point 1 (Online) - App: Apple app‚ android app‚ mobile site‚ website - Social media - Word of Mouth - Bloggers/Review - Viral and email Touch Point 3 - Call Center/customer service - Web site - Travel Agency - In-store Purchase - Staff help - Book and cook service - Reminding email Touch Point 4 - Waiting Lounge - Airline advertising (Out-of-home) - Attractive and helpful
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