that can be easily and repeatedly washed. Chemist 2: Environmental monitoring This career role as a public servant could involve monitoring air and water quality and interpreting data to provide policy advice to statutory authorities. The chemist would be working as a member of a team providing advice on the formulation of government policies relating to air and water quality. Chemist 3: Research chemist in surfactants A chemist working in research in this area assists in the development of new
Premium World War I Nitrogen Thermodynamics
Topic 6 Microscopic World II Unit 23 Shapes of molecules Unit 24 Bond polarity and intermolecular forces Key C o ncepts Microscopic World II Shapes of molecules • Covalent molecules with non-octet structures • Shapes of molecules • The VSEPR theory • Molecular crystals of buckminsterfullerene (C60) • Carbon nanotubes Bond polarity and intermolecular forces • Electronegativity and bond polarity • Van der Waals’ forces • Factors affecting the strength
Premium Atom Oxygen Molecule
UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Ordinary Level CHEMISTRY Paper 1 Multiple Choice May/June 2005 1 hour Additional Materials: Multiple Choice Answer Sheet Soft clean eraser Soft pencil (type B or HB is recommended) 5070/01 w w w e tr .X m eP e ap .c rs om READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples‚ paper clips‚ highlighters‚ glue or correction fluid. Write your name‚ Centre number and candidate number on the answer
Premium Oxygen Hydrochloric acid Ammonia
1. (a) The diagram below represents the industrial fractional distillation of crude oil. (i) Identify fraction A. (ii) What property of the fractions allows them to be separated in the column? (2) (b) A gas oil fraction from the distillation of crude oil contains hydrocarbons in the C15 to C19 range. These hydrocarbons can be cracked by strong heating. (i) Write the molecular formula for the alkane with 19 carbon atoms. (ii) Name the type of reaction involved in cracking. (iii) Write
Premium Petroleum Gasoline Internal combustion engine
Data-based questions Study the photos below and answer the following questions. Photo A Photo B Photo C (a) What are industries shown in photos A‚ B and C respectively? (3 marks) (b) Draw a diagram to illustrate the manufacturing system of the industry shown in photo A. (4 marks) (c) Describe and explain the characteristics of these three industries. (i) Photo A (3 marks) (ii) Photo B (3 marks) (iii) Photo C (in tradition) (3 marks) (d) How do personal factors affect
Premium Iron Steel Iron ore
Ms. Tester Speech 1.10.14 Brown Bag Speech Purpose Statement: These are objects that represent me as a person. I. Introduction A. Attention getter: What do you think the best job in the world would be? How does getting paid to play video games sound? B. Thesis Statement: Hi‚ my name is Katy Anderson‚ and while working at Chuck E. Cheese’s as a Game Room Technician‚ I get paid to play the games you pay to play. II. Body A. Work 1. Work is my main priority‚ over everything including school
Free Game Play Music
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
Premium Water Atom Fundamental physics concepts
Appendix APPENDIX 1 Chemical tests for functional groups Homologous series/ Typical compound Functional group(s) Alkanes CH3CH3 ethane C – C and C–H Alkenes CH2 = CH2 ethene C=C Chemical tests/Observations Add liquid bromine in ultraviolet light (or sunlight): White fumes of HBr liberated; decolourisation of bromine occurs slowly (a) Add Br2 in CCl4 at room temperature: Decolourisation of bromine occurs immediately CH2 = CH2 + Br2 → CH2BrCH2Br (b) Add acidified
Premium Carboxylic acid Alcohol Sulfuric acid
Cat is out of the bag: KANA and Layoff Gone Awry(A) 1) Who are the key constituents in this case and identify each of their interests? The key constituents in this case are in the table below: Constituents Vicki (VP of Int. and HR) and Bryan Kettle (CFO) Chuck Bay (CEO) and Tom Doyle (COO) Customers Terminated employees and unions Survivor employees Managers The investment Community HRManagement Interests making the layoff process go as smoothly and transparently for the business
Premium Management Termination of employment Layoff
Millions of plastic bags are given out to consumers by supermarkets and stores to carry their goods in. They are also cheap‚ light‚ durable‚ easy to carry and in many cases‚ free. The most commonly used shopping bag is made of High Density Polyethylene (HDPE). This type is used in the majority of supermarkets and stores. After these bags are used‚ they often end up in landfills or as litter‚ roughly only three percent of plastic bags is actually recycled per year (Planet Ark‚ 2011). The materials
Premium Recycling Plastic recycling Environment