The relationship between shape and diffusion rate Aim- To investigate the relationship between the shape of an object and the time taken for a substance to diffuse to its centre. Hypotheses- Part A) The 5x5x2.5mm block will turn clear first as the Surface area to volume ratio is high and the 10x10x10mm block will take the longest to completely diffuse the Acid to its centre. Part B) The flat‚ rectangular block will be the first to completely turn clear due to its high Surface Area/Volume Ratio
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The Cu (II) complexes usually have a distorted octahedral stereochemistry. A few are known with square planar or approximately tetrahedral geometry. But stereochemistry has little effect on the magnetic moment of Cu (II) complexes and magnetic moment is about 1.90 BM. In regular octahedral Cu (II) complexes ground term is 2Eg and hence no orbital contribution is expected. The spin only magnetic
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sp2 carbon at a bridgehead. (No alkenes‚ no carbocations!) Or‚ notice the trans-alkenes in small rings. 60 Chemistry S-20 Week 1 Carbocation Stability 1. Draw the structure of the methyl cation‚ CH3+. Describe the hybridization‚ geometry‚ and orbitals in this species. H H H Carbon is sp2-hybridized‚ with 120° bond angles and a vacant p-orbital. 2. Each of the following carbocations is significantly more stable than
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excellent example of a living being that has bilateral symmetry. The other kind of symmetry is radial symmetry. This is where there is a center point and numerous lines of symmetry could be drawn. The most obvious geometric example would be a circle. Geometry is the branch of mathematics that describes shapes. Sphere: A sphere is a perfectly round geometrical object in three-dimensional space‚ such as the shape of a round ball. The shape of the Earth is very close to that of an oblate spheroid‚
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1 Title: Mummy Math: An Adventure in Geometry Author: Cindy Neuschwander Number of pages: 29 pages Should allow 20 minutes to read book. Grade(s) the book is most suited for: First and Second Grade Topic(s) covered in the book: Geometry: Identifying Shapes Summary of the book: Mummy Math is about twins named Matt and Bibi’s adventure into a mummy’s tomb. They craw into the tomb and find themselves stuck in the tomb. They two of them solve some geometry puzzles to get to the mummy’s chamber
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Topic 1- Mathematics and Certainty Having said something about the nature of formal systems‚ we must now look in more detail at the nature of mathematical certainty. To do this‚ let us begin by making two distinctions. The first concerns the nature of propositions. An analytic proposition is one that is true by definition. A synthetic proposition is any proposition that is not analytic. So we can say that every proposition is either analytic or synthetic. The second distinction concerns how we
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http://www.mhhe.com/physsci/chemistry/essentialchemistry/flash/hybrv18.swf Salient Features Chemistry animation and videos Atomic orbital animations Hybridization animation http://jchemed.chem.wisc.edu/JCEDLib/WebWare/collection/open/JCEWWOR019/mo Molecular orbital theory animations movies.html http://www.mhhe.com/physsci/chemistry/essentialchemistry/flash/activa2.swf http://dwb4.unl.edu/chemAnime/Electro.htm Activation energy animation Electrochemistry animations RW-7 RW-8 RW-9 http://www.mhhe
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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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Name: Date: Graded Assignment Unit Test‚ Part 2 Answer the questions below. You may use a drawing compass‚ ruler‚ and calculator. When you are finished‚ submit this test to your teacher by the due date for full credit. You ARE NOT allowed to use the internet while completing this exam unless specific directions are given in a problem stating that you may access a graphic via google or other search engine. Use of the internet while completing this test is considered cheating and will result in
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087/X/SA2/05/A1 Class - X SOCIAL SCIENCE Time : 3 hours â×Ø Ñ 3 æÅðU Maximum Marks : 80 ¥çÏ·¤Ì× ¥´·¤ Ñ 80 Total No. of Pages : 11 Instructions : 1. The question paper has 36 questions in all. All questions are compulsory. 2. Marks are indicated against each question. 3. Questions from serial number 1 - 16 are multiple choice Questions (MCQs) of 1 mark each. Every MCQ is provided with four alternatives. Write the correct alternative in your answer book. 4. Questions
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