Chapter 1: An Introduction to Geology What is geology‚ and what is the difference between physical and historical geology? Geology is the scientific study of the Earth and its major systems Physical Geology is the Study of the Earth’s composition. structure‚ and the processing that shape it Historical Geology is the Study of Earth’s history and the history of life With respect to why we study geology‚ in class I cited three areas of benefit to humanity where geologic knowledge is needed. What
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mechanical in nature;A qualitative description leading to Ohm’s law can be based upon classical mechanics using the Drude model developed by Paul Drude in 1900. The Drude model treats electrons (or other charge carriers) like pinballs bouncing between the ions that make up the structure of the material. Electrons will be accelerated in the opposite direction to the electric field by the average electric
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Resistance to Addition Reactions – - although benzene has double bonds‚ it does not undergo typical alkene reactions such as electrophilic addition - benzene is‚ in fact‚ very stable towards hydrogenation‚ halogenation‚ hydration & addition of hydrogen halides: NR EX. H2 X2 C6H6 H2 O HX NR NR NR c) Preference for Substitution Reactions – - instead of addition reactions like alkenes‚ benzene readily undergoes substitution reactions typical of alkanes: EX. C6H6 + Cl2 Fe C6H5 Cl + HCl -
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electricity) and heating with carbon or carbon monoxide (or called the “Blast Furnace”). Some other metals like Silver and Gold occur naturally in the Earth’s crust as “native metals”. The method to extract the metal depends on its place in the Reactivity Series (how reactive the metal is). The more reactive the metal‚ the more difficult it is to extract. Thus electrolysis would be used more the more reactive and the “Blast Furnace” for the less: Metal Method of Extraction Potassium Electrolysis
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OCEAN COUNTY COLLEGE OFFICIAL COURSE DESCRIPTION DEPARTMENT OF SCIENCE AND ENGINEERING 1. Course Number and Title: CHEM-181 General Chemistry I 2. Semester Hours: 4 Contact Hours: (3 + 2) Lecture Lab 3. Catalog Description This course‚ intended for science majors‚ is the first course of a two-course sequence. Course topics include stoichiometry‚ inorganic nomenclature‚ solutions‚ gas laws‚ thermochemistry‚ atomic structure‚ and chemical bonding. The laboratory work includes
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Title: pH and buffer solutions Aim This experiment was carried out to determine the role of buffer solution and the factor which affect the buffer capacity. Besides‚ this experiment was carried out to investigate the solubility of protein casein over a range of pH concentration. This experiment also was carried out to determine the isoelectric point of the casein and the effect of the isoelectric point toward the casein solution. Methods Verification of the Henderson-Hasselbalch equation
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It’s a rarity that we should come across a laboratory‚ classroom‚ chemistry textbook or lecture theatre that doesn’t contain a periodic table of the elements. It required the immense research and determination of the scientist Dmitri Mendeleev to show us that all elements followed a natural form and provided us with the first decent periodic table. There are 111 elements recognised today by IUPAC and they are arranged in the periodic table in horizontal groups and vertical periods. The eight groups
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the above 2. Which ONE of the following best describes what happens when an electron moves to a lower energy shell? A. the nucleus decays B. a quantum of energy is emitted C. a quantum of energy is absorbed D. a negative ions forms E. a positive ion forms 3. Which ONE of the following shows the set of quantum numbers for an electron in a 2p
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scientists are constantly searching for new improved catalysts which will improve efficiency or produce a greater yield. An acidic catalyst works due its acid nature. Catalysts are strong acids and readily give up hydrogen ions‚ or protons: H+. Protons can be released from hydrated ions‚ for example H3O+‚ but more commonly they are released from ionisable hydroxyl groups (R-OH) where the O-H bond is broken to produce R-O- and H+. When the reactant receives protons from an acid it undergoes a conformational
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which are groups of similar cells that act as a functional unit. * Tissue Organ Systems function together to form a _______? -Organism Hydrogen= 1 Electron If you change the # of protons you change the atom Positive attracts negative Ion= Charged Atom If you dissolve sugar and water you have a mixture. Polarity-any separation of charge into distinct positive & negative regions. Molecule- group of 2 or more atoms joined by chemical bonds. Compound-Type of molecule that has atoms
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