Transition Metals 1a) The d-orbitals of a free transition metal atom or ion are degenerate (all have the same energy.) However‚ when transition metals form coordination complexes‚ the d-orbitals of the metal interact with the electron cloud of the ligands in such a manner that the d-orbitals become non-degenerate (not all having the same energy.) The way in which the orbitals are split into different energy levels is dependent on the geometry of the complex. Crystal field theory can be used to predict
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Courtney Ulrick Lab Experiment #4 Properties of Gases Purpose: The purpose of this experiment was to understand the gases; Hydrogen‚ Oxygen‚ and Carbon Dioxide. The experiment helped me understand the properties of these gases‚ specifically their physical and chemical properties. Data: Gas | Flame Reaction | Glowing Splint | Limewater Reaction | Bromothymol Blue Reaction | Hydrogen | Loud Pop | | | | Oxygen | | Glowing Brighter | | | Hydrogen & Oxygen | Loud Pop‚ extinguished
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In the medieval period the most powerful people in the Western Europe were the great nobles kings‚ lords and the lesser nobles. They were at the top of the feudal system.Nobles had control over the knights and peasants. Kings and queens found it difficult to rule without the help of the nobles for three main reasons. Firstly they needed the force of fighting men (knights) on call if their power was threatened‚ Secondly they needed someone to travel their messages it was hard for rulers to make their
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General Chemistry 1 Lab 4 Properties of Gases LabPaq - Properties of gases General Chemistry Introduction Background This report covers Properties of Gases and will allow me the opportunity to explore chemical and physical properties of gases. Collection and use of these gases will also be conducted in this lab. Statement of Problem Collecting gases is a difficult process. Singling out a gas and obtaining only that gas is the challenge we face in this experiment. Purpose
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neutralizing alkalis‚ and dissolving some metals. It can be corrosive or it can be sour liquid of this kind. Acids are also all around us in everyday life‚ for example‚ carbon dioxide gas dissolves in rain to form carbonic acid (a weak acid). We find acids in many foods‚ such as ethanoic acid in vinegar. These acids are not hazardous. Some acids‚ which are found in the laboratory a car battery are too dangerous to taste or touch. Another name of these acids are strong acids. Alkalis are substances
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Study of Gold metal Date: 14/01/2013 Submitted to: Dr Sami Habib Submitted by: Jamil Mahfoud (A1010659) I- General introduction about metals: a- Historical background Back to 6000 BC‚ process metallurgy is known as one of the oldest applied sciences. Despite that the form of metals was very basic but it has a big impact on the society because of its wide uses especially as tools for agriculture or hunting and even as artistic styles later on. There are 86 known metals so far that were
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Barnes & Noble does business -- big business -- by the book. As the #1 bookseller in the US‚ it operates about 650 superstores throughout 49 states and the District of Columbia under the banners Barnes & Noble‚ Bookstop‚ and Bookstar‚ as well as about 200 mall stores using the names B. Dalton‚ Doubleday‚ and Scribner’s. The company’s GameStop subsidiary is the #1 US video game retailer with about 1‚500 stores under the names Babbage’s Etc.‚ GameStop‚ and FuncoLand. Barnes & Noble owned about 75%
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Barnes & Noble: Will The Bookseller Survive? Books have played an important role not only in spreading the idea of democracy but also in connecting us to new ideas to both our reality and fantasy experiences. Advances in technology seem to happen quicker and quicker with each passing day forcing change to what may or may not be a standard in today’s society. Not so long ago cell phones were new and the size of bricks. Only the elite were fortunate to have a cell phone. Today kids younger than
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The “Noble” Savage Over the years‚ people have formed many different opinions over Rousseau`s noble savage theory. The main controversy sprouts from Rousseau`s statement that the natural human heart is good until civilization corrupts it. Golding’s exploration of the Noble savage theory has instigated theological and philosophical questions on the origin of human wickedness‚ as well as arguments comparing solitary and civilized human nature. Rousseau’s declaration that humans are naturally good
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Beowulf - A Noble There are a two heroic acts that Beowulf accomplished that characterize him as being noble. One example of these acts is his altruistic behavior through out his life.When beowolf heard that the great king hrothgar and his knights were being attacked by the evil monster Grendel. Without even asking king hrothgar what was in it for him Beowolf got up and took 14 of his men and sailed on a ship to king hrothgar’s palace to face the evil monster Grendel in hand to hand combat
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