2008 APEC Clean Development Conference – The Current Applications and Future Promotion of Green Chemistry for Sustainable Development National Tsing-Hua University‚ Hsinchu‚ Chinese Taipei Dec.15.2008 Green Chemistry for the Improvement of Human Welfare Gwo-Dong Roam ‚ Wan-Yi Wu‚ Chung-Han Chiou‚ Chung-Wen Yen Office of Sustainable Development Environmental Protection Administration‚ Chinese Taipei Tel: 02-23822841; E-mail: gdroam@sun.epa.gov.tw Viewpoints & Experiences: . Roadmap:
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THE s-BLOCK ELEMENTS 291 UNIT 10 THE s -BLOCK ELEMENTS The first element of alkali and alkaline earth metals differs in many respects from the other members of the group After studying this unit‚ you will be able to • describe the general characteristics of the alkali metals and their compounds; • explain the general characteristics of the alkaline earth metals and their compounds; • describe the manufacture‚ properties and uses of industrially important sodium and calcium
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Chem 30A Ch.1-4: Condensed Chang’s Class Notes Chapter 1 Valence electrons octet rule exceptions P and S can have 10 or 12 valence e- B and Al (Group 3) can have 6 valence e- electronegativity- how much an atom wants e- < 0.5 = nonpolar‚ covalent (i.e. H2) 0.5 - 1.9 = polar covalent direction of polarity (using arrow and delta symbol) overall dipole > 1.9 = ionic formation of ions fish-hook arrow Lewis structure formal charge Functional Groups Molecular Shape VSEPR (Valence Shell
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Anthony Martinez Mr. Hruby Chemistry R Period 4(5A) Name & Symbol: Platinum (Pt) Properties: -Atomic Number: 78 -Atomic Mass: 195.084 amu -Appearance: Shiny‚ smooth surface‚ silver like‚ solid. Melting point (K): 2045 Boiling point (K): 4100 Valence electrons: (+1)‚ +2‚ (+3)‚ +4‚ +6 Atomic radius (pm): 139 1st Ionization energy (kJ/mol): 868.1 Electronegativity: 2.28 Natural Occurring Isotopes: Six stable isotopes of platinum occur in nature (190‚ 192‚ 194
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of psychological testing is to make more informed hiring decisions. Many companies consult outside companies to give and assess these tests in an effort to keep the tests unbiased and to help guard against lawsuits. Psychological testing is used to determine‚ in particular‚ the ability of potential employees to work under stressful conditions and to assess the potential of a prospective employee to handle the job effectively under those conditions. The use of psychological testing can lower the risk
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LABORATORY TESTING OF HIGHWAY MATERIALS INSTRUCTIONS 1. STATEMENT OF ORIGINALITY Certified that this is the bonafide research work of Mr. Albert M. Dintweng and has a Summarized title; Laboratory Testing Of Highway Materials Instructions. Compiled from January 2011 until December 2011. Signature:_________________ 2. DISCLAIMER While utmost care has been taken in the preparation of this instruction report to provide reliable information
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no more than 50% A’s and B’s. ** Academic Dishonesty Policy is available in the University Catalogue and online. You are responsible for knowing and following the policy. Fin. 303 Spring 2013 Schedule Week 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Revised January 20‚ 2013 Textbook Date Chapters Topics 23-Jan 1 Introduction 2 Review of financial statements 30-Jan 3 Analysis of financial statements 6-Feb 4 Introduction to the Time Value of Money 13-Feb Test via Moodle Chapters 2-4 20-Feb Midterm
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Standardize a solution of potassium manganate(VII) by an iron (II) salt (ammonium iron (II) sulphate) Introduction Oxidation numbers describe the number of electrons the atom will gain or lose during a reaction. Each atom in an equation can be assigned an oxidation number according to certain rules. If the oxidation number of an atom increases as you go from the left side to the right side if an equation‚ oxidation has occurred (electrons have been lost); if the oxidation number decreases
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days 5/3/13 17 Years Later I am currently 18 years of age‚ the age that most youth look forward to and believe it will be the best thing in the world to be considered an “adult.” Considering that most teens like to live in the “right here‚ right now” moment‚ little do they realize 18 does not mean much‚ there is an entire future for them to think about. 18 is just a reminder that‚ as much as we may not want to‚ we are getting older meaning its time to start planning our futures. In 17 years I will
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CHM 256: BASIC ANALYTICAL CHEMISTRY TUTORIAL 1: INTRODUCTION: ANALYTICAL CHEMISTRY 1. What is chemical analysis? 2. Differentiate between qualitative and quantitative analysis (Oct 2008‚ 2009‚ Dec 2009‚ Apr 2010) 3. Give 7 steps in performing any chemical analysis (Apr 2010) 4. Briefly explain how to prepare the following solutions: a) 1.0 L 10.50 % (w/v) aqueous CH3CH2CH2OH (answer : 105 g) (Oct 2006‚ Oct 2007‚ Oct 2008) b) 500 mL 2.0 M H2SO4 from a commercial reagent‚ at 90% (w/w) purity
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