structure‚ how many σ- (“sigma”) and π- (“pi”) bonds are present in the molecule C2H3Cl ? A. 3 σ and 1 π B. 3 σ and 2 π C. 4 σ and 1 π D. 5 σ and 1 π E. 5 σ and 2 π Also: what types of orbital overlaps occur for formation of bonds? sp2 hybrid orbitals on carbon with s orbitals of hydrogen or sp3 orbital of chlorine‚ sp2 hybrid orbitals between carbons form sigma bonds leftover p orbitals on each carbon form a pi bond. 4. Consider the following species – BF4
Premium Chemical bond Atom Covalent bond
Question 1 The subatomic particles that play the greatest role in cellular chemical reactions are Your Answer for Question 1 isotopes. Comments The correct answer is: electrons. Max Score: 5 Actual Score: 0 Question 2 The structural unit that retains the properties of an element is the Your Answer for Question 2 atom. Comments Correct!!
Premium Atom Oxygen Chemical bond
Words: 893 Recently‚ one of my good friend has inherited ￡20‚000 and wants to invest this amount of money in financial market‚ in other words‚ she is planning to buy some financial products such as equities‚ bonds and currencies. She has asked me for some guidance. In my opinion‚ I think diversifying portfolio would be the best way to get a higher return. In this essay‚ I will explain the concept and benefits of diversification in financial markets. However‚ even with a diversified portfolio of
Premium Investment Financial markets Risk
Name: ___________________________Lab Section __________________ 9/24/12 BIO 10100 Exam 1 Version 1 Prior to completing this exam‚ please read the following statement and sign below to indicate that you have read and understood the statement. No exam will be graded unless the pledge is signed. “I pledge that I have neither given nor received unauthorized assistance on this exam. I understand that if I am charged with cheating‚ my name will be submitted to the Dean for disciplinary action
Premium Hydrogen bond Covalent bond DNA
Compiled SCH4U Course Review Unit 1: Atomic Structure and Bonding Section 3.3 Electron Configurations and Periodic Trends (pg. 139-157) Feb. 11 For single electron system all orbitals with the same value of have the same energy Atoms with more than 1 electron with the same value of n have different energies (sublevels) Because of interactions between additional electrons All orbitals within a sublevel have the same energy The Fourth Quantum Number: A property of the electron (spin quantum
Premium Electron configuration Chemical bond Energy
SYLLABUS Cambridge O Level Chemistry 5070 For examination in June and November 2014 University of Cambridge International Examinations retains the copyright on all its publications. Registered Centres are permitted to copy material from this booklet for their own internal use. However‚ we cannot give permission to Centres to photocopy any material that is acknowledged to a third party even for internal use within a Centre. © University of Cambridge International Examinations 2011 Contents
Premium Chemistry Oxygen Ionic bond
NAME: MASSAWE BARAKA‚ REG. NO: 2010-04-03894. 12 FINANCE 202 INDIVIDUAL ASSIGNMENT UDBS Consider a 10 year bond that has a face value shs 1000‚ a coupon rate of 6% and pays interest once a year. (a)Suppose person A bought this bond at par when it was initially issued and sold it 1 year later to person B for shs 1024.What is B’s total return? Soln Total return =[ Interest paid +(selling price – buying price)]/buying price Given; Annual interest paid = coupon rate x par value‚ coupon
Premium Rate of return Interest Time value of money
HYDROCARBONS 365 UNIT 13 HYDROCARBONS Hydrocarbons are the important sources of energy. After studying this unit‚ you will be able to • • name hydrocarbons according to IUPAC system of nomenclature; recognise and write structures of isomers of alkanes‚ alkenes‚ alkynes and aromatic hydrocarbons; learn about various methods of preparation of hydrocarbons; distinguish between alkanes‚ alkenes‚ alkynes and aromatic hydrocarbons on the basis of physical and chemical properties; draw and
Premium Chemical bond Methane Hydrogen
Unit C2‚ C2.2.3 Covalent structures 1. This drill contains an electric motor. The diagram below shows the main parts of an electric motor. The carbon contacts are made of graphite. Springs push the contacts against the copper ring. The contacts conduct electricity to the copper ring. The copper ring rotates rapidly but does not stick or become worn because the graphite is soft and slippery. Graphite has properties which are ideal for making the contacts in an electric motor. Explain
Premium Carbon Atom Carbon dioxide
Reminder: These notes are meant to supplement‚ not replace‚ the laboratory manual. A Diels-Alder Reaction History and Application: The 1950 Nobel prize in chemistry was awarded to Otto Paul Hermann Diels and Kurt Alder for their breakthrough work on the discovery and development of [4 + 2] cycloaddition reactions i. This set of reactions are enormously useful in the synthesis of six membered rings in a single stepii. These are used in many pharmaceutical applications. Tamiflu® is a drug which
Premium Chemical reaction Carboxylic acid Oxygen