Chemical Education Today Especially for High School Teachers by Erica K. Jacobsen Chemistry in My Kitchen The Jacobsen kitchen is an unusual place. The atmosphere is often more “mad scientist” than “gourmet chef ”. Testing JCE Classroom Activity procedures at home brings an eclectic collection of materials to our counters. Our toaster competes for space with a collection of funnels made from 2-liter plastic beverage bottles and rubber stoppers (1). Baking soda from my shelf joins citric acid
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Chemistry 200 Exam 1 Review Problems 1. Calculate the number of atoms in 10.0 grams of Fe. 2. Give the mass number‚ #protons‚ #neutrons and #electrons for the isotope strontium-88. 3. Calculate the number of moles of carbon in 50.0 g of benzene C6H6 4. A substance is found to be 38.7 % C‚ 9.7 % H and 51.6 % O by mass. Its molar mass is 62.1 g/mole. What is its molecular formula? 5. Name the following: a) Ca(OH)2 b) KCN c) HClO4(aq) d) FeSO4 e) Na2O f) SF6 g)
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3090 3090▌ SHORT REVIEW Reaction of Diazo Compounds with Organoboron Compounds short review Huan Li‚ Yan Zhang‚ Jianbo Wang* Reaction of Diazo Compounds with Organoboron Compounds Abstract: The transition-metal-free reactions of diazo compounds with organoboron compounds are reviewed. This type of reaction provides an alternative approach for the formation of C–C‚ C–B‚ and C–Si bonds. Moreover‚ by using tosylhydrazones as diazo compound precursors and boronic acids/esters as the
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When we talk of Science and Superstition together it appears as though we are trying to put two opposites together‚ and‚ in doing so putting forth an obviously awkward act. In order to see whether the twosome sounds awkward together and if so how awkward we have to analyze the basic content of both Science and Superstition. On the one hand when Science appeals to reason‚ logic and can be explained‚ Superstition relates to none of these three qualities. The latter in essence is basically a show
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Singapore‚ May 2007 PROMOTING SCIENCE PROCESS SKILLS AND THE RELEVANCE OF SCIENCE THROUGH SCIENCE ALIVE! PROGRAMME Grace Teo Yew Mei Clementi Town Secondary School Chan Kaling Charlene Seah Xinyi Jessie Sim Kim Sing Karine Nai Sok Khoon Clementi Town Secondary School ABSTRACT The study explores ways in which students who have participated in a curriculum innovation‚ Science ALIVE! acquire Science process skills and perceive the relevance of Science in everyday life. It investigates whether
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References: 1. Dr. G. Maguire‚ 2009‚ Inorganic Chemistry (Chem. 210) Practical Manual‚ UKZN Durban. 2. Werner‚ A. “Über strukturisomere Salze der Rhodanwasserstoffsäure und der salpetrigen Säure” Berichte der deutschen chemischen Gesellschaft 1907‚ volume 40‚ 765-788. DOI: 10.1002/cber.190704001117
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Environment Culture influences an individual’s attitude towards environment. Environment in this context refers to our physical surroundings and nature. Man’s attitude towards his immediate environment is largely based upon his cultural upbringings. Trompenar’s concept of attitude towards environment highlights how man controls nature by imposing his will upon it (reference). Large organizations impact the nature and environment in many ways. Corporate Social responsibility has become
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its people. Although nuclear energy produces nuclear fission‚ which does not release carbon dioxide‚ but releases steam‚ as well as producing more electricity than renewables like solar and wind‚ nuclear energy can‚ as well‚ impact the environment in negative ways. According to the discovery website‚ nuclear energy requires uranium‚ which must be mined and transported to power plants. Due to this process‚ there is an issue of radioactive waste. This waste is not biodegradable nor helpful
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scientific training‚ skills‚ and experience in a criminal and legal environment‚ to help catch and convict people who have committed crimes. Forensic scientists are called upon when help is needed to extract and assess any physical evidence that could have been left at the crime scene. The details of the evidence is then explained in a court in order for an appropriate legal action to take place against the crime. Forensic science deals with several specializations such as certain aspects of crimes
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Chemistry 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. It is a physical science which studies various substances‚ atoms‚ molecules‚ crystals and other aggregates of matter whether in
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