N12/4/CHEMI/SPM/ENG/TZ0/XX 88126104 CHEMISTRY standard level Paper 1 Friday 9 November 2012 (afternoon) 45 minutes INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions. • For each question‚ choose the answer you consider to be the best and indicate your choice on the answer sheet provided. • The periodic table is provided for reference on page 2 of this examination paper. • The maximum mark for this examination
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The Dissolving of Solid Sodium Hydroxide in Water Procedure: 1. Measure out approximately 200 mL of distilled water and pour it into the calorimeter. Stir carefully with a thermometer until a constant temperature is reached. Record the volume of water and the constant initial temperature of the water on your data table. 2. Place a plastic measuring trough on top of the digital balance‚ and then zero the balance (press the tare button) so that the mass of the trough will be "ignored" and
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Stone Eagle‚ Wisconsin – Six Years Later: These were tough times for Chief Marc Sarb. The twins were off to college‚ each going their separate way. Luke‚ took a year off and joined Amer i-Corps. He wanted to serve his country and‚ also‚ needed to get away from the academic grind. It was his hope that it would give him a better perspective on what career he wanted to pursue. He knew he was not cut out to work in an office and ’pledge allegiance’ to the corporate life. Taking a year off helped
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Introduction: In industry‚ a heat exchanger is used to cool down streams for temperature sensitive processes. The now hot cooling water is useless to the plant unless something is done to cool it down. In industry‚ cooling water towers are used to bring the water back down to a sufficient level . In a cooling tower‚ outside atmospheric air is flowed through a “column” while the hot water sprayed into the system. Since air is never at full saturation of water (unless it is raining)‚ some of the hot
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INTRODUCTION 1. INTRODUCTION The copolymerization of ethylene with 1‚ 3-butadiene to give crystalline‚ homopolymer-free‚ high molecular weight‚ substantially linear copolymer is described. Butadiene polymerizes almost exclusively in a trans-1‚ 4 structure‚ ranging in content from zero to 50 mole-%. At relatively low content of butadiene monomeric units (≤30 mole-%) X-ray crystallinity is of polyethylene type with a slight variation of the structural parameters. At higher levels of
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SAFETY General WHMIS beforehand – no messing around on anything‚ no food/drink anywhere PPE – goggles‚ coat‚ feet Treatment Skin Chem: emergency shower – TA/HS Eye Chem: eye wash – 10 mins. TA/HS Fire Emergency kill switch for gas‚ electricity and water – leave and set the alarm Stop drop and roll Apparati should be clear of any controls or switches‚ keep vapours to minimum/take need Extinguishers – on the wall inside each 1st year lab Class A - ordinary combustibles
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SMK RAPAT SETIA PROJEK MATEMATIK TAMBAHAN 3472/2 Nama Calon : Angka Giliran : No. IC : Nama Guru : ISI KANDUNGAN No. Butiran 1.0 Perakuan calon 2.0 Penghargaan 3.0 Objektif 4.0 5.0 Perakuan Calon Tentang Ketulenan Tugasan Projek Kertas 3472/2 Saya memperakui bahawa Tugasan Projek yang dikemukakan untuk memenuhi syarat Peperiksaan Sijil Pelajaran Malaysia 2013 bagi mata pelajaran Matematik
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Chapter 1: Intermolecular Forces: Liquids‚ Solids‚ and Phase Changes Chem 11: General Chemistry 2 Topics 1.1 An Overview of Physical States and Phase Changes 1.2 Quantitative Aspects of Phase Changes 1.3 Types of Intermolecular Forces 1.4 Properties of the Liquid State 1.5 Uniqueness of Water 1.6 The Solid State: Structure‚ Properties and Bonding A hot spring on a snowy day The Kinetic Molecular View of the Three States The characteristic properties of gases‚ liquids
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THIS DOCUMENT IS PROTECTED BY U.S. AND INTERNATIONAL COPYRIGHT It may not be reproduced‚ stored in a retrieval system‚ distributed or transmitted‚ in whole or in part‚ in any form or by any means. Downloaded from SAE International by Loughborough University‚ Friday‚ June 29‚ 2012 01:25:49 PM Direct Injection Diesel Engine Rate of Heat Release Prediction using Universal Load Correction Factor in Double Wiebe Function for Performance Simulation 2011-01-2456 Published 04/01/2012 S. Loganathan‚ R
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Macronutrients Vs Micronutrients Macronutrients Big components Protein Carbohydrate Fat Fibre Micronutrient Need less off Vitamin Trace elements Energy Food and nutrients supply our bodies with energy Energy = Kilojoules + Calories 4.18 Kj to a Calories Nutrient poor – lots of KJ but not a lot in the nutrients Basic Anatomy Salvia Starts mouth finishes in intestines Involves enzymes specific to each nutrient 2-72 hours to complete Bile – breakdown and emulsifies fats Proteins – protesters Villi Cells Fats
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