Lab 3: Kitchen Countertop Chemistry – Chemical Change‚ Radioisotopes‚ and Lipids Worksheet (Attach photos to the last sheet) Data Sheets Enter the data and mark the graphs on Word and resubmit it as part of the assignment. 45 M & Ms 90 M & Ms Half-life # of Undecayed Atoms # of Decayed Atoms Half-life # of Undecayed Atoms # of Decayed Atoms 0 45 M & Ms 0 0 90 M & Ms 0 1 19 23 1 50 40 2 12 7 2 23 27 3 3 9 3 6 17 4 0 3 4 3 3 5 5 1 2 6 6 0 1 7 7 8 8 9 9 10 10 11
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M13/5/MATME/SP1/ENG/TZ1/XX 22137303 mathematics STANDARD level Paper 1 Candidate session number 0 0 Thursday 9 May 2013 (afternoon) Examination code 2 1 hour 30 minutes 2 1 3 – 7 3 0 3 instructions to candidates Write your session number in the boxes above. not open this examination paper until instructed to do so. Do You are not permitted access to any calculator for this paper. Section A: answer all questions in the boxes provided.
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2.14) a) Zirconium melting point is a physical property. b) Zirconium being resistant to corrosion is a chemical property. c) Zirconium having a greyish-white appearance is a physical property. d) It is a chemical property that allows Zirconium to ignite in the air when cut into small pieces. e) It is a physical property that Zirconium is a shiny metal. 2.18) a) Potential energy b) Kinetic energy c) Kinetic energy d) Kinetic energy 2.22) I would advise my friends to read the instructions
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Introduction In this task‚ I will develop model functions representing the tolerance of human beings to G-force over time. In general‚ humans have a greater tolerance to forward acceleration than backward acceleration‚ since blood vessels in the retina appear more sensitive in the latter direction. As we all know‚ the large acceleration is‚ the shorter time people can bear. Using the data shown in the task and Mat lab analysis‚ we can get several model functions to represent the tolerance
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Edexcel GCSE Chemistry/Science Unit C1: Chemistry in our World Foundation Tier Sample Assessment Material Time: 1 hour You do not need any other materials. Paper Reference 5CH1F/01 Total Marks Instructions Use black ink or ball-point pen. Fill in the boxes at the top of this page with your name‚ centre number and candidate number. Answer all questions. Answer the questions in the spaces provided – there may be more space than you need. Information The total mark for this paper is 60. The marks
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Chapter 6 Chemical Reactions and Quantities The Mole General‚ Organic‚ and Biological Chemistry Copyright © 2010 Pearson Education‚ Inc. 1 Collection Terms A collection term states a specific number of items. 1 dozen donuts = 12 donuts 1 ream of paper = 500 sheets 1 case = 24 cans General‚ Organic‚ and Biological Chemistry 2 A Mole of Atoms A mole is a collection that contains the same number of particles as there are carbon atoms in 12.0 g of carbon 12C 6.02 x 1023 atoms of
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under certain conditions‚ such as heating and oxidation‚ many of which may occur during the cooking of food.(2) In general‚ the recommendation for vitamin C intake in humans is around 60–95 milligrams per day and the maximum upper intake level is 2000 milligrams per day. Vitamin C exhibits remarkably low acute
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p IB DIPLOMA PROGRAMME PROGRAMME DU DIPLÔME DU BI PROGRAMA DEL DIPLOMA DEL BI Biology Higher level and standard level Specimen paper 1s‚ 2s and 3s For first examinations in 2009 http://www.xtremepapers.net CONTENTS Biology higher level paper 1 specimen paper Biology higher level paper 1 specimen markscheme Biology higher level paper 2 specimen paper Biology higher level paper 2 specimen markscheme Biology higher level paper 3 specimen paper Biology higher level paper 3 specimen markscheme
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101.4ºC 1.26 g/cm3 Yes 2-Chlorobutane C4H9Cl 93.56 g/mol -140ºC 68ºC 0.87 g/cm3 Yes 2-Chloro-2-methylpropane C4H9Cl 92.57 g/mol -26ºC 51ºC 0.84 g/cm3 Yes Bromobenzene C6H5Br 157.01 g/mol -30.8ºC 156ºC 1.49 g/cm3 Yes Cis-1-Chloro-2-butene C4H7Cl 90.55 g/mol -65ºC 63.5ºC 0.923 g/mL Yes Trans-1-Chloro-2-butene C4H7Cl 90.55 g/mol -65ºC 68ºC 0.923 g/mL Yes 1-Chloro-2-methylpropane C4H9Cl 92.57 g/mol -131ºC 68ºC 0.883 g/cm3 Yes 2-Bromobutane C4H9Br 137.02
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Introduction and Theory: A two dimensional object is a figure that has both width and height. Today in physics a two dimensional lab was done to decide the distance of an ice cream cone shooter. To do this‚ the formula (d=Ví t + (1/2) at^2) has to be implemented. I decided to make my Y equal to one meter‚ so my calculations would be easy to get. I knew my acceleration for Y was -9.8‚ the velocity initial for Y was zero‚ and the time it will take for the ice cream to reach zero is .452. For X I know
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