August 15‚ 2012 COMPOUND MICROSCOPE A compound microscope is an optical instrument used to see objects that are too small for the naked eye. A compound microscope is a microscope fitted with two or more convex lenses. The high magnification produced by these lenses together enables a detailed study of micro-organisms‚ cells and tissues. These types of microscopes are therefore widely used in scientific and medical research. The basic design of a compound light microscope consists
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CHEMISTRY COURSE TITLE: General Organic Chemistry COURSE CODE: CHM 121 ‚ UNIT: 2.0 . INTRODUCTORY AND IMPORTANCE OF ORGANIC CHEMISTRY Organic chemistry is the study of the compounds of carbon. Carbon compounds are far more numerous than those of other elements because carbon are able to bond together to form a wide range of chains and rings. The subject is named organic chemistry because living organisms are composed of carbon compounds. Organic chemistry could be regarded as the
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COORDINATION COMPOUNDS: * FLEXIDENTATE CHARACTER OF POLYDENTATE LIGANDS; * Poly dentate ligands have flexi dentate character in the sense that all donors atoms may not form coordinate bonds with the central metal atom or ion. For example; EDTA which is the hexa dentate ligand also acts as tetra dentate or penta dentate in certain complexes. Similarly sulphate ion‚ which is a bi dentate ligand‚ also acts as a mono dentate ligand in certain complexes‚ e.g. in [Co(SO4)(NH3)5]Cl. * LABILE
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An introduction to organic foods In spite of the increasing popularity of Organic food these days‚ most of the people do not have a clear idea regarding the definition of organic food. In simple words‚ Organic foods are those foods that are produced‚ processed and packaged without using chemicals. They have been accepted due to their perceived health benefits over conventional food. The organic industry is growing rapidly and has caught the attention of farmers‚ manufacturers and‚ above all‚ consumers
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Tetrapyrrole compounds: chlorophyll and heme groups By Erwin Lim 1. Tetrapyrrole compounds A tetrapyrrole compound is a chemical group that consists of four pyrroles that are joined together by covalent bonds‚ forming a porphyrin ring. They are naturally occurring pigments‚ which are used in many biological processes (Berg‚ 2009). The basic structure of a tetrapyrrole is as seen in Figure 1‚ while the basic structure of a pyrrole is as seen in Figure 2. Figure 1.Tetrapyrrole Compound (Berg‚ 2009)
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write 4 points why we need to conserve resources. Work to be done in lab copy using 2 facing pages. ‚ History Look at the two maps ___ India in 1857 and India in 1765. Study the maps and answer the following questions. 1. What differences do you se e between them? 2. Do you notice the disappearance of many Indian kingdoms? 3. Name them. 4. Under whose rule was most of India by 1857? 5. What strategies were adopted by them to bring India under their control? Chemistry 1. 2. 3. 4. Describe
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Organic chemistry Organic chemistry is one of the ‘branches’ of chemistry and is seen as distinct from other branches‚ such as inorganic and physical chemistry. It can be described as the chemistry living processes (often referred to as biochemistry) but extends beyond that. It focuses almost entirely on the chemistry of covalently bonded carbon molecules and as well as life processes‚ it includes the chemistry of other types of compounds‚ including plastics‚ petrochemicals‚ drugs and paint
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The compound pendulum Consider an extended body of mass with a hole drilled though it. Suppose that the body is suspended from a fixed peg‚ which passes through the hole‚ such that it is free to swing from side to side‚ as shown in Fig. 98. This setup is known as a compound pendulum. | Figure 98: A compound pendulum. | Let be the pivot point‚ and let be the body’s centre of mass‚ which is located a distance from the pivot. Let be the angle subtended between the downward vertical (which passes
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I. Introduction: Thesis Statement: People should consume organic foods because they have More nutritious‚ No pesticides are used on them‚ No hormones or antibiotics are used in their production A. Major Proposition or Premise (before because): People should consume organic foods B. 1st Minor Proposition or Premise (after because): More nutritious. C. 2nd Minor Proposition or Premise (after because): No pesticides are used on them. D. 3rd Minor Proposition or Premise (after because):
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2. Category of Number of the Noun. Regular – one. Plural – more than one. Regular Plurals: 1. Nouns ending in vowels & voiced consonants - -s(bee-bees‚ dog-dogs‚ [z]) 2. Voiceless consonants - -s(book-books‚ [s]) 3. –s‚-sh‚-ss‚-ch‚-x‚-z - -es (actress-actresses‚ [iz]) 4. –o: -es-hero-heroes. But: -os: after a vowel – bamboos‚ embryos‚ folios‚ kangaroos‚ radios‚ studios‚ zoos. In proper names – Romeos‚ Eskimos‚ Filipinos. In abbreviations - kilos‚ photos‚ pros(professional). Also: pianos
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