Interatomic Bonding Tutorial Suggested Solutions 1. |Substances |Type of bonding |Type of structure | |H2O |Covalent |Simple molecular | |SiCl4 |covalent |simple molecular | |RbCl |ionic |giant lattice/ionic | |Si |covalent
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Classification of Chemical Substances Student: Saule Sadykova Lab Partner #1: Temirlan Atambaev Lab Partner #2: Almas Ospanbekov Instructor: Eugene Douglass Nazarbayev University Purpose The aim of this experiment is to investigate the properties of several substances with the purpose of determining whether they are molecular‚ ionic‚ macromolecular or metallic. Introduction Chemical substances could be named ionic‚ molecular or metallic substance‚ based on the kind of bond present in it
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Tutorial 2 Q1. Why do most international bonds have high Moody’s or Standard & Poor’s credit ratings? Credit Rating is a social intermediary service to provide credit information and reference for the community. Credit rating is aim to show the size of a credit default risk the rating object‚ rating agencies focus on financial conditions and historical data to give the overall valuation of object. Currently‚ credit rating on the issue of international bonds is the popular investment risk valuation
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How do ionic bonds form? Transferring the electron forms an ionic bond. After transferring the electron‚ the two atoms become ion n will attract together because they have the opposite charges. Then an ionic bond is formed. How do covalent bonds form? A covalent bond is for sharing of electrons. I remember it like co-existing electrons to share (Eg H20). It is usually between two non-metals. Which compound‚ sugar or salt‚ is a better conductor of electricity? Explain your answer. Salt
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Municipal Bonds The greatest advantage of municipal bonds can be summed up in two words: tax free. The interest rates on municipal bonds may seem low compared to similar long-term securities like Treasury bills and CDs‚ but tax advantages may level the playing field. Let ’s look at some examples. If you ’re in the 25 percent bracket for 2008 federal income taxes‚ you ’d have to find a taxable security with an interest rate of 4 percent to equal the yield of a tax-free municipal bond with an interest
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All the bonds in a particular issue may mature at the same time (term bonds) or in installments over a period of time (serial bonds). Serial bonds are like installment notes payable. Some of Southwest Airlines long-term debts are serial in nature because they are payable in installments. Secured‚ or mortgage‚ bonds give the bondholder the right to take specified assets of the issuer if the company defaults that is‚ fails to pay interest or principal. Unsecured bonds‚ called debentures‚ are backed
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River By Abha Sirohi Research Scholar‚ A.K.P. G. College‚ Hapur (Ghaziabad) .................................................................................................................................................................. Ruskin Bond attempts to analyze human psychology in his short stories; He deals with the elemental and impulsive life of man. He tells the stories objectively and beyond all these things his stories shows goodness of man’s heart and his faith in the Supreme power
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Introduction A lot has been written about Ruskin Bond‚ our very own Indian writer‚ whose writing s span over 50 years. His versatile‚ original and elegant style of writing has made him a favourite to readers around the world. Despite Bond’s British background‚ he writes about India as an insider’s perspective. Having lived the majority of his life in India‚ he knows the country well and writes an authenticity and emotional engagement about the land and the people of the Himalayas and small-town India
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event of liquidation. Answer True False 1 points Question 2 Junk bonds are also called high-yield bonds. Answer True False 1 points Question 3 The expected yield on junk bonds is lower than the yield on AAA-rated bonds because of the higher default risk associated with junk bonds. Answer True False 1 points Question 4 In general‚ interest on bonds‚ like dividends on preferred stock‚ may be deferred until a later date at the discretion
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Topic 4 - Bonding 4.1 Ionic bonds 4.1.1 Ionic bond: +ve (cations) and -ve (anions) ions are attracted to each other and form a continuous ionic lattice 4.1.2 Group 1 metals form +1 ions‚ group 2 metals form +2 ions‚ metals in group 3 form +3 ions . Examples : Li+‚ Mg2+‚ Al3+. Greater ease of ionisation Li->Cs is due to the increased electron shielding of the nuclear attraction caused by additional inner shells of electrons. The easier atoms are to ionise‚ the more reactive they
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