oxygen and exploded. After cooling‚ the residual gases occupied 137.5cm3. the volume was reduced by 100cm3 on exposure of the gases to Potassium hydroxide solution and the remaining gas was oxygen. a) Determine the molecular formula of P b) Write the possible structural formula of P and name them. S.5 Mathematics Answer all questions. 1. ABCD is a quadric lateral where A1 B1 C and d are the points (3‚-1)‚ (6‚ 0)‚ (7‚ 3) and (4‚2). Prove that the diagonals bisect each other at right angles. Hence find
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JSampson Every parent has his or hers own personal philosophy when it comes to raising children. There are many controversial issues surrounding this topic because many different people have many different opinions on how to raise a child correctly. One of the biggest issues today in society is whether to breast or bottle feed an infant. Another difficult issue is how to go about disciplining a child. Many parents believe religion is an essential part of growing into a moral person‚ and many do not
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Trigonometry Trigonometry (from Greek trigōnon "triangle" + metron "measure"[1]) is a branch of mathematics that studies triangles and the relationships between the lengths of their sides and the angles between those sides. Trigonometry defines the trigonometric functions‚ which describe those relationships and have applicability to cyclicalphenomena‚ such as waves. The field evolved during the third century BC as a branch of geometry used extensively for astronomical studies.[2] It is also the
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Steven Leung 9/19/06 Lab Report The Empirical Formula of a Copper Oxide Purpose: To convert an unknown copper oxide to copper (Cu) metal using natural gas to provide a reducing environment as shown below: Cu O (s) + CH (g) ¨ Cu (s) + Co (g) + H O (g) From the mass difference between the unknown copper oxide and the Cu metal generated at the completion of the reaction and the molar mass of Cu and oxygen‚ the empirical formula of the original copper oxide can be calculated. Materials:
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g / 1 mol = 102.5 g Determine the number of atoms that are in 0.58 mol of Se. 0.58 mol x 6.02 x 1023 atoms / 1 mol = 3.49 x 1023 atoms How many moles of barium nitrate contain 6.80 x 1024 formula units? 6.80 x 1024 formula units x 1 mol / 6.02 x 1023 formula units = 1.13 x 101 CP Chemistry Test Review (Unit 10) Complete the following reactions‚ balance the equations and identify the type of reaction. For single and double replacement reactions indicate
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enlightens us on higher pleasure. “Who is Crazy?” brings to light that‚ the whole world is divided into factions‚ and each accuses the others of being crazy. But if there are no criteria by which to judge sanity‚ then who can decide? “The Only Peace Formula” speaks about the threats of war that are looming large‚ increasing crime rate the world over and the means to reduce it. “World of Modern Science” expounds the childishness of the scientific community in conducting space programs costing billions
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Cost‚ Volume‚ and Profit Formulas All businesses require becoming profitable or at some point they will fail. Accounting plays an essential role in determining if the company will become successful and continue to do so over time. Using well-defined formulas in order to assess the exact numbers will facilitate the actions a company needs to carry out in order to maintain its goals. The accounting department would look at the cost-volume-profit analysis to concentrate on the different components
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trigonometric ones‚ but I’ll leave that generalization aside for now. Legendre polynomials are an important example of functions used for such expansions. An example: On the interval 0 < x < L the function x2 varies from 0 to L2 . It can be written as the series of cosines L2 4L2 + 2 x = 3 π 2 ∞ 1 (−1)n nπx cos 2 n L 2πx 1 3πx πx 1 − cos + cos − ··· L 4 L 9 L (1) = L2 3 − 4L2 π2 cos To see if this is even plausible‚ examine successive partial sums of the series‚ taking one term‚ then
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= A to C = 2 units y 1 B C –1 0 –1 D y 1 P A 1 x units 3 units A to D = 2 Definition of a radian In moving around the circle a distance of 1 unit from A to P‚ the angle POA is defined. The measure of this angle is 1 radian. One radian (written 1c ) is the angle subtended at the centre of the unit circle by an arc of length 1 unit. –1 0 –1 1 unit 1c A 1 x 445 ISBN 978-1-107-67331-1 © Michael Evans et al. 2011 Photocopying is restricted under law and this material
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Breastfeeding can offer many benefits for babies. Breast milk contains the right balance of nutrients to help your infant grow into a strong and healthy toddler. Most of the nutrients and vitamins that are in breastmilk help the baby develop into a strong and healthy toddler. It also help to protect the baby from diseases and other illnesses. It may also help the mother’s health. Statistically‚ depending on race or culture‚ breast feeding can vary. Overall‚ about 73% of U.S. moms said that
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