...................................................................... (1) (b) For the element X in the ionic compound MX, explain the meaning of the term oxidation state. ..................................................................................................................................... (1) (c) Complete the table below by deducing the oxidation state of each of the stated elements in the given ion or compound. |Oxidation state| Carbon in CO|| Phosphorus in PCl|| Nitrogen
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metals such as cadmium, lead, nickel, chromium and copper from aqueous solution is necessary because of the hazardous effect it does on the environment ,thereby making environmental protection important, however waste solutions containing heavy metal elements need treatment systems that can remove these contaminants effectively (Harvey and Chantawong, 2001). Frequent appearance of these metals in waste streams from many industries, including electroplating, metal finishing, metallurgical, tannery, chemical
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Physics Unit 1 Revision (higher tier) Energy There are 9 different forms of energy: Light Heat Chemical Kinetic (movement) Electrical Elastic (Gravitational) potential Nuclear Sound Energy is never created or destroyed! Energy is transferred from one form to another form. Not all of the energy transferred by a device is useful energy. Potential energy is stored energy. All energy will eventually spread out to the surroundings as heat. Sample question 1 Sankey diagrams
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pepsin, the powerful enzyme in gastric juice that digests proteins such as those in meat, eggs, seeds, or dairy products. Pepsin was first recognized in 1836 by the German physiologist Theodor Schwann. In 1930 it was crystallized and its protein nature established by John H. Northrop of the Rockefeller Institute for Medical Research. Glands in the mucous-membrane lining of the stomach make and store an inactive protein called pepsinogen. Impulses from the vagus nerve and the hormonal secretions
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“The Effectiveness of Saccharum spontaneum (Kans Grass) for the Production of Paper” Chapter I The Problem and it’s Setting Introduction Paper is very important to every man’s life. It is used by all types of people mostly students for personal or general purposes. That is why production of paper increases dramatically every year. Paper is made from the cellulose fibres that are present in hard wood and softwood plants. Usually, paper trees are being processed to produce paper.
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Chapter 2 Coulomb’s Law 2.1 Electric Charge..................................................................................................... 2-3 2.2 Coulomb's Law .................................................................................................... 2-3 Animation 2.1: Van de Graaff Generator ............................................................... 2-4 2.3 Principle of Superposition.................................................................................... 2-5
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this level, the basic physical laws governing macro objects undergo a drastic change. A macro particle is a cluster of atoms arranged together in random order. The formation of the structure is left to nature, and control over the properties of the material is difficult. Nanotechnology, on the other hand, is a bottom-up approach where materials are created by placing individual atoms together. This decreases the randomness in the structural formation, enabling significant control over the properties
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The City of Milwaukee should layoff their current gasoline power vehicles while hiring alternative fuel power vehicles for civil service. In today’s environmentally conscious society, major emphasis is being placed on the government to become greener and cleaner. The City of Milwaukee is spending a tremendous amount of the current budget to fuel and maintain inefficient gasoline powered vehicles; it has left the city in a continuous substantial annual deficit. The City of Milwaukee should begin using
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Prachi Sonani Mr. Bal Honors English 10 29 September 2014 Extraterrestrials in the Universe No one has seen the element ununoctium, but it does not indicate that it does not exist; in fact it is an actual synthetic element that has yet to survive for more than a thousandth of a second. All that is needed are scientists who can stabilize the element to survive longer. The same goes for extraterrestrials. Just because no one has found them, it does not prove they do not exist. Extraterrestrials
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A2 level Biology notes By bssjonny Contents A2 level Biology notes 1 Contents 2 Section 1.1 – Populations and ecosystems 2 Section 1.2 – Investigating Populations 3 Section 1.3 – Variation in population size 4 Section 1.4 / 1.5 – Competition / Predation 5 Section 1.6 – Human Populations 6 Section 2.1 – Energy and ATP 8 Section 3.1 + 3.2 – Photosynthesis and the light
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