nature of electron pairs on bond angles in molecules of methane‚ ammonia and water Shapes of some polyatomic ions Shapes of molecules with multiple bonds Molecular crystals of buckminsterfullerene (C60) 23.1 – 23.7 Summary 1 Examples of covalent molecules with non-octet structures are as follows: Molecule Electron diagram F BF3 B F F SF4 F Molecule Electron diagram F S F F Cl PCl5 Cl Cl P Cl Cl SF6 F F F S F F F 2 The following table summarizes
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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
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______________________________ Week 1 Lab Goals: 1. Choose your lab group. 2. Learn about lab safety. **IMPORTANT – All students are expected to wear a lab coat and goggles in lab at ALL times. As well‚ you are not permitted to wear shorts or open-toed shoes. If you are not dressed appropriately for lab‚ your TA will dismiss you. You are permitted to return to lab with proper attire and equipment‚ but the rules for lateness will apply (see the syllabus). If you do not return to lab with proper attire and
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7 Lab #1 - Assessment Worksheet Identifying Threats and Vulnerabilities in an IT Infrastructure CSS 250 Security Risk Management Course Name and Number: _____________________________________________________ Kristopher Brown Student Name: ________________________________________________________________ Cheryl Frederick Instructor Name: ______________________________________________________________ 10/13/2014 Lab Due Date: ________________________________________________________________
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Unit 1 Labs Lab 1.1: Reading Binary Exercise 1.1.1 – 2931 103 102 101 100 1000/ 100/ 10/ 0 2000+900+30+1 = 293110 Exercise 1.1.2 – 1102 22 21 20 1102 = 610 Exercise 1.1.3 – 112 = 310 Exercise 1.1.4 – 100102 = 1810 Exercise 1.1.5 – 111000102 = 22610 Exercise 1.1.6 – 15610 = 100111002 Exercise 1.1.7 – 25510 = 111111112 Exercise 1.1.8 – 20010 = 110010002 Exercise 1.1.9 – 2^7 2^6 2^5 2^4 2^3 2^2 2^1 2^0 128 64 32 16 8 4 2 0 binary 0 0 0 0 1 0 0 1 0 0 0 0 8 0 0 0 decimal 8 Exercise 1.1.10
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Chemistry Lab Report (Design) Factors affecting Rates of a Reaction (Kinetics) KINETICS DESIGN LAB Research Question: Does the concentration of Potassium Iodide (KI) affect the rate of its reaction with hydrogen peroxide (H2O2) (of a fixed concentration)? Introduction: There are several factors that affect the rate of a reaction. Some of them being Pressure (if the reactants are Gases)‚ Temperature‚ Presence of a Catalyst‚ Surface Area of the reactant‚ and Concentration. According to
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Lee 1 Kwan Woo Lee Lab Report#1 Measurements in resistive networks and circuit laws laboratory Abstract: The purpose of this lab is to verify the Ohm’s Law‚ Kirchhoff’s Voltage and Current Laws. As well as the introduction to the voltage division. The Ohm’s Law states that the current through a conductor between two points is directly proportional to the potential difference across the two points (V = IR). The Kirchhoff’s Voltage Law states that the directed sum of the electrical voltage
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Lab #1 (16th October‚ 2012) Safety in the Microbiology Lab * Clinical specimens received from patients pose a hazard to personnel health because of the infectious agents they may contain. * Spurred by the spread of HIV/AIDS‚ the CDC has recommended safety precautions concerning the handling of patient materials by health care workers. * Universal precaution (or blood and body fluid precaution). * Emphasis on good knowledge and common sense. * Safety is everybody’s business
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Instructor’s Name: Sylvia Nemmers Assignment: SCI103 Phase 1 Lab Report Title: Measuring pH Levels Instructions: Enter the Virtual Lab‚ and conduct the experiments provided before going out into the field for additional research. Please type your answers. When your lab report is complete‚ submit it to the Submitted Assignments area of the Virtual Classroom. Part I: Answer the following questions while in the Phase 1 lab environment. Section 1: You will be testing 4 known solutions for pH levels
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BCS 145 LAB: AXIAL SKELETON WHY ARE WE DOING THIS LAB? The skeletal framework of the body is composed of at least 206 bones and the associated tendons‚ ligaments‚ and cartilages. The skeletal system has a variety of important functions‚ including‚ the support of soft tissues‚ blood cell production‚ mineral/electrolyte and lipid storage‚ and‚ through its relationships with the muscular system‚ the support and movement of the body as a whole. Skeletal system disorders can thus affect many other
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