Chemical Bonds Chemical Bond: is the force that holds atoms together in a compound. They form because they lower the potential energy of the charged particles that compose atoms. Chemical bonds can be broadly classified into two types: Ionic and Covalent. Ionic: metal & nonmetal Metals have a tendency to lose electrons and nonmetals have a tendency to gain them. The metal atom becomes a cation and a nonmetal becomes an anion. The oppositely charged ions attract one another and form an ionic
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Chemical bond From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electrostatic force of attraction between opposite charges‚ either between electrons and nuclei‚ or as the result of a dipole attraction. The strength of chemical bonds varies considerably; there are "strong bonds" such as covalent or ionic bonds and "weak bonds" such
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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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That is where hydrogen fuel cells come into the picture. Rather than depending on a foreign countries oil‚ to provide fuel‚ businesses today should look to hydrogen as an alternative fuel source. The United States is too dependent on foreign oil. If something were to happen‚ like another war with the Middle East‚ we would not have any oil to power our cars or heat our homes. That’s why hydrogen is the answer. Everybody could make their own fuel for their country by creating hydrogen plants and buying
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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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Introduction: In liver cells‚ hydrogen peroxide is produced as a bi-product of some metabolic reactions. Hydrogen peroxide is a highly active chemical used in household products for bleaches and cleansing wounds. In a cell its build up would be highly toxic. However‚ liver cells contain an enzyme‚ catalase‚ which immediately breaks down hydrogen peroxide. It is a peroxidase and breaks up the toxic hydrogen peroxide to water and oxygen which are both nontoxic. The reaction is exothermic‚ meaning that
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