Human Physiology ZOOL 2404 Instructor: Dr. Gollahon Copyright © 2009 Pearson Education‚ Inc.‚ publishing as Pearson Benjamin Cummings Introduction Chapters 1 and 2 Study strategies crucial for success Attend all lectures‚ labs‚ and study sessions Read your lecture notes and text materials before listening to the audio or watching the video lectures Devote a block of time each day to your Physiology course Set up a study schedule and stick to it Do not procrastinate!
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C H EM 301A - O rganic Chem istry L ecture N otes © Dr. Peter de Lijser‚ 2011 Introduction – Welcome to O-chem! “What is Organic Chemistry?” Organic chemistry is the chemistry of Carbon. “Why is Organic Chemistry Important for me?” Organic Chemistry is the central science for many other fields: • Medicine/Pharmacy: • Biochemistry: • Industrial Applications: • Reaction Mechanisms: What do "Organic Chemists" do? • Discover new reactions • Improve old reactions
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Name: __________________________________ Teacher: ________________________________ DO NOT OPEN THE EXAMINATION PAPER UNTIL YOU ARE TOLD BY THE SUPERVISOR TO BEGIN Chemistry 2202 FINAL EXAMINATION June 2010 Value: 100% General Instructions This examination consists of two parts. Both parts are contained in this booklet and further general instructions are provided on appropriate pages. Part I – Multiple Choice (40%) Select the letter of the correct response from those provided. EITHER
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type. 2. What are the three subatomic particles that constitute the atom? What is the electrical charge of each? 3. Distinguish between anions and cations. 4. What are the four major chemical elements of the body? 5. Distinguish between an ionic and a covalent chemical bond. 6. Define electronegativity. 7. Describe how polar covalent bonds are formed and how electrical charges are distributed in them. 8. Describe how nonpolar covalent bonds are formed and how electrical charges are shared
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hydrates. Hydrates occur quite commonly among chemical substances‚ especially among ionic substances. More often than not‚ such compounds are either prepared in‚ or are recrystallized from‚ aqueous solutions. Hydrates exist for ionic compounds most commonly‚ but hydrates of polar and non polar covalent molecules are also known. In this experiment‚ you will study some of the properties and characteristics of several ionic hydrates‚ and then you will determine the percentage by weight of water in an unknown
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Molecule Polarity PhET Lab A study of electronegativity‚ bond polarity‚ and molecular polarity Introduction: In this atomic-level simulation‚ you will investigate how atoms’ electronegativity value affects the bonds they produce. When two atoms bond‚ a pair of electrons is shared between atoms. Electronegativity is a measure of a single atom’s ability to hoard electrons shared in that bond. In this lab you will work diligently‚ at your own pace‚ to answer a number of questions. To begin‚ from
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compound c. trace elements d. isotope e. ion f. isomer (don’t get d‚ e and f mixed up) g. proton h. neutron i. electron 3. Understand how covalent bonds form and the difference between polar covalent and non-polar covalent 4. How does an ionic bond form? 5. What is a H bond and know an example. 6. About chemical reactions: a. What is a chemical reaction? b. Reactants c. Products 7. The polar nature of water gives it extraordinary characteristics” a. Cohesion versus adhesion b.
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V. Kumar Dean Sri Chaitanya Educational Institutions Hyderabad Chemistry - Ist year Chapter-wise Weightage of Marks Name of the Chapter Atomic Structure Periodic classification of elements Chemical bonding States of matter Stoichiometry Hydrogen and its compounds IA and IIA groups IIIA group IVA group Noble gases Environmental chemistry Organic chemistry Marks Weightage 8 8 8 6 6 6 6 4 4 4 4 12 Type of Questions 1 LAQ (or) 2 SAQ (or) 1 SAQ & 2VSAQ 1 LAQ (or) 1 SAQ & 2 VSAQ 1 LAQ (or) 1 SAQ &
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a spherical orbital? A.f B.d C.p D.s E.not enough information Answer Key: D Question 3 of 23 2.0/ 2.0 Points Consider the electron configuration of the ion to determine which ion shown below has an incorrect ionic charge? A.Se2- B.Ba2+ C.Al3- D.Rb+ E.none of the above Answer Key: C Part 2 of 8 - 4.0/ 6.0 Points Question 4 of 23 0.0/ 2.0 Points The correct Lewis structure for BF3 would have exactly: A.1 double
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discovered‚ with all these possible combinations it is necessary to provide order through a systematic naming system. This naming system‚ aside from organization also provides the reader with information about the given element. There are different kinds of compounds‚ ionic‚ covalent‚ and acidic and over all of this the atoms making up the compounds are either binary or polyatomic. The simplest compounds to name are binary ionic compounds‚ for example NaCl‚ which is named Sodium Chloride. Na having a
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