5.) a.) b.) Ethyne (C₂H₂) has the shortest C-to-C bond because there is a triple bond between the two C’s. The shorter the bond‚ the smaller the distance between the two bonded atoms‚ a single bond has the largest distance between two bonded atoms. c.) i.) trigonal planar ii.) pyramidal d.) This is not true because the bonds described are intramolecular forces‚ C-H‚ C-O‚ O-H‚ which are not affected by boiling. When boiling occurs‚ added energy overpowers intermolecular forces‚ not
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Trends in the Periodic table March 24‚ 2013 Four trends that will be covered: Atomic size Ionization Energy Electronegativity Electron Affinity Each of these has a group trend and a period trend A group trend refers to what is happening with the atom as you travel up or down a column of the periodic table. A period trend refers to what is happening with the atom as you move left or right across a row of the periodic table Atomic Size When discussing an atom’s size‚ usually the
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Additional Questions: 1. H H H C C H H C C H C H H C H H Compound A Compound A is an intermediate compound found in a production plant attempting to synthesise n-hexane. a) List three physical properties of alkynes. b) Give the IUPAC name of compound A. [3 marks] [2 marks] c) There are several ways to form the final product from Compound A. An operator has decided to use Pt catalyst to react with Compound A. Write the complete chemical reaction equation. [3 marks] d) The quality assurance
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CARIBBEAN EXAMINATIONS COUNCIL Caribbean Advanced Proficiency Examination CAPE ® CHEMISTRY SYLLABUS Unit 1 - effective for examinations from May/June 2007 Unit 2 - effective for examinations from May/June 2008 CXC A11/U2/06 Published by the Caribbean Examinations Council All rights reserved. No part of this publication may be reproduced‚ stored in a retrieval system‚ or transmitted in any form‚ or by any means electronic‚ photocopying‚ recording or otherwise without prior permission
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1.1 Chemistry A. What Is Chemistry? * Because living and non-living things are made of matter‚ chemistry affects all aspects of life and most natural events. * Matter- is anything that has mass and occupies space. * Chemistry- is the study of the composition of matter and the changes that matter undergoes. B. Areas of Study * Five traditional areas of study are organic chemistry‚ inorganic chemistry‚ biochemistry‚ analytical chemistry‚ and physical chemistry. * Organic
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MODALITY DIFFERENCES AND SHORT-TERM MEMORY The effects of modality differences on short-term memory capacity Yasemin Dilibal Feyza Öztürk Selin Kalabaş and Gözde Üstün Middle East Technical University – Northern Cyprus Campus Psychology Program May 2014 1 MODALITY DIFFERENCES AND SHORT-TERM MEMORY 2 Abstract The current study examined the notion that the effect that differences between serial recall of stimuli presented in different sensory modalities. Therefore‚ it was hypothesized that
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One of the main reasons for Hitler’s economic policies was preparing for the war. We can tell this because he didn’t want people out of jobs because that meant they weren’t working and manufacturing the materials he needed to go to war. This is why is set up the RAD‚ the National Labour Service because it meant that people were forced to go to work from 1935 onwards which sped up the manufacturing of materials like iron and steel. He also increased the amount of food being produced as well to avoid
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Michelangelo had several successes in his life of painting‚ architecture‚ and sculpting. He was a leading figure of baroque and renaissance art. His first large-scale sculpture was Bacchus. Around the same year of 1498‚ Michelangelo did the marble Pieta‚ which is the only work he ever signed. In 1536‚ Michelangelo started the Last Judgment for the altar wall of the Sistine Chapel. Michelangelo was born on March 6‚ 1975 in Caprese Italy. Instead of going to school‚ Michelangelo would go and watch
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The first stuart king of England‚ king of Scottland from 1567 to 1625 is also known as King James 1st. King James influenced many people‚ the bible and other kings in his era. King James was born June 19‚ 1566‚ Edinburgh castle‚ Edinburgh Scottland‚ he died on March 27‚ 1625‚ Theobalds‚ Hertfordshire‚ England. James was the only son of Mary‚ Queen of Scots‚ and her second husband‚ Henry Stewart‚ Lord Danley. Eight months after James’s birth his father died when his house was destroyed by an explosion
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Super Swimmer "Hey Buddy‚ you ready to swim?" He hid behind his mom’s leg and held on tight. His name was Dylan Cross and his mother signed up for 16 private swim lessons. I wondered why he was so scared of the pool. This little tan boy had nothing but fear in his eyes. So I pulled his mother to the side and asked her if Dylan had ever had swim lessons here at Philadelphia Sports Clubs before. She said "No he hasn’t‚ he has only been in the pool once when he was five and he nearly drowned to death
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