Chemistry (the etymology of the word has been much disputed)[1] is the science of matter and the changes it undergoes. The science of matter is also addressed by physics‚ but while physics takes a more general and fundamental approach‚ chemistry is more specialized‚ being concerned with the composition‚ behavior (or reaction)‚ structure‚ and properties of matter‚ as well as the changes it undergoes during chemical reactions.[2] It is a physical science which studies various substances‚ atoms‚ molecules
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The Identification and Production of Materials 1. Fossil fuels provide both energy and raw materials such as ethylene‚ for the production of other substances. Students Learn To: .2 Identify the industrial source of ethylene from the cracking of some of the fractions from the refining of petroleum. • Ethylene is produced either from natural gas or crude oil‚ which are mixtures of hydrocarbons. One method involves… Cracking: a process by which hydrocarbons with higher molecular
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Unit 1 – Lesson 1 Chemistry Key Questions 1. Element Standard Notation # Of Electrons # Of Protons # Of Neutrons Sodium 23 11 Na 11 11 12 Chromium 24 Ca 26 26 27 ? Phosphorus 32 P 15 15 16 2. Fireworks; Which metals burn to produce these colours? Red – Lithium (Sr) Blue – Cesium (Cs) Pink – Potassium (K) Yellow/Green – Copper (Cu) Orange – Carbon (Ca) 3. Let’s say that the three bottles contain Fe(NO3)3‚ BaCl‚ and AgNO3. These are Iron (III) Nitrate‚ Barium Chloride
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Atmospheric chemistry is a branch of atmospheric science in which the chemistry of the Earth’s atmosphere and that of other planets is studied. Environmental chemistry is the scientific study of the chemical and biochemical phenomena that occur in natural places. It can be defined as the study of the sources‚ reactions‚ transport‚ effects‚ and fates of chemical species in the air‚ soil‚ and water environments; and the effect of human activity on these. Environmental chemistry is an interdisciplinary
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Bond P is a premium bond with a 12 percent coupon. Bond D is a 6 percent coupon bond currently selling at a discount. Both bonds make annual payments‚ have a YTM of 9 percent‚ and have five years to maturity. The current yield for Bonds P and D is percent and percent‚ respectively. (Do not include the percent signs (%). Round your answers to 2 decimal places. (e.g.‚ 32.16)) | If interest rates remain unchanged‚ the expected capital gains yield over the next year for Bonds P and D is percent
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I. Grade Level/Unit Number: 9-12 Unit 7 II: Unit Title: Mole Concept III. Unit Length: 7 days (on a 90 min. per day block schedule) IV. Major Learning Outcomes: Students should be able to: Mole Concept • Calculate formula mass. • Convert representative particles to moles and moles to representative particles. (Representative particles are atoms‚ molecules‚ formula units‚ and ions.) • Convert mass of atoms‚ molecules‚ and compounds to moles and moles of atoms
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HOMEWORK ASSIGNMENT 1. Callaghan Motors’ bonds have 10 years remaining to maturity. Interest is paid annually‚ they have a $1‚000 par value‚ the coupon interest rate is 8%‚ and the yield to maturity is 9%. What is the bond’s current market price? PV factor of sum = (1+i)^-n = (1+9%)^-10 =1.09^-10 = 0.4224 PV factor of annuity = 1 - (1+i)^-n / i = 1 - (1+9%)^-10 / 9% = 1 - 0.4224 / 9% = 0.5775 / 9% = 6.417 = PV factor of Sum * Par Value + PV factor of annuity * coupon payment = 0.4224 * 1‚000
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The characteristic of a convertible bond The convertible bond is one kind of equity-linked bonds. The term of the bond entitles bondholder to convert bonds into shares of the company or another company in the same group‚ at an agreed-upon conversion price‚ among a fixed period. The reason why it is made in this form is that the issuer can benefit from four aspects as follow‚ (1) better terms. A convertible bond have a lower interest rate‚ less restrictive covenants or the subordination of bondholders’
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countries during a specified period of time. BOP compares the dollar difference of the amount of exports and imports‚ including all financial exports and imports. A negative balance of payments means that more money is flowing out of the country than coming in Read more: http://www.investopedia.com/terms/b/bop.asp#ixzz2KhMuRIuZ Balance of payments (BoP) accounts are an accounting record of all monetary transactions between a country and the rest of the world.[1] These transactions include payments for
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Sains Malaysiana 41(4)(2012): 445-452 Effects of Spin Contamination on the Stability and Spin Density of Wavefunction of Graphene: Comparison between First Principle and Density Functional Methods (Kesan Pemumusan Spin Terhadap Kestabilan dan Ketumpatan Spin bagi Fungsi Gelombang Grafen pelumusan: Perbandingan antara Kaedah Prinsip Pertama dan Kaedah Kefungsian Ketumpatan) LEE SIN ANG*‚ SHUKRI SULAIMAN & MOHAMED ISMAIL MOHAMED-IBRAHIM ABSTRACT The effects of spin contamination on the
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