Organic Chemistry/Biochemistry 1: Compounds Important to Life • Biologists classify compounds into organic compounds and inorganic compounds. Organic Compound: a compound that is derived from living things and contains carbon Inorganic Compound: a compound generally derived nonliving things • Water Water is an inorganic molecule with unique properties that make it one of the most important compounds for living things. In the water molecule (H2O)‚ the hydrogen and oxygen atoms bond
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Name Class Date [pic] Compound Inequalities 3-6 Reteaching A compound inequality with the word or means one or both inequalities must be true. The graph of the compound inequality a < –4 or a ≥ 3 is shown below. [pic] A compound inequality with the word and means both inequalities must be true. The graph of the compound inequality b ≤ 4 and b > –1 is shown below. [pic] To solve a compound inequality‚ solve the simple inequalities from which it is made. [pic] Problem
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Nomenclature for Ionic Compounds Ionic compounds consist of cations (positive ions) and anions (negative ions). The nomenclature‚ or naming‚ of ionic compounds is based on the names of the component ions. Here are the principal naming conventions for ionic compounds‚ along with examples to show how they are used: Roman NumeralsA Roman numeral in parentheses‚ followed by the name of the element‚ is used for elements that can form more than one positive ion. This is usually seen with metals. You
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The Compound Light Microscope Commonly binocular (two eyepieces)‚ the compound light microscope‚ combines the power of lenses and light to enlarge the subject being viewed. Typically‚ the eyepiece itself allows for 10X or 15X magnification and when combined with the three or four objective lenses‚ which can be rotated into the field of view‚ produce higher magnification to a maximum of around 1000X generally. The compound light microscope is popular among botanists for studying plant cells‚ in
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Compound Light Microscope The familiar compound light microscope is a series of lenses (hence "compound") that focus visible light in such a way as to produce a magnified image. A single lens‚ often called a magnifying glass‚ cannot generally magnify images as much as a series of lenses although Antony van Leeuwenhoek‚ the first microbiologist‚ used a simple‚ albeit exquisitely crafted‚ lens to discover single-celled "animalcules‚" as he called them. Advantages: Basic compound light microscopes
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Compound 50‚ like its known analogue 3‚ involves an α‚β-unsaturated ketone‚ an acid-sensitive reactant‚ which prevents its direct synthesis in presence of protic solvents by refluxing. Despite of this characteristic‚ 50 was formed smoothly in 5 minutes by grinding chemistry‚ solely as E-isomer‚ without any evidence of decomposition after 1H and 13C MNR analysis. This synthetic approach provides easy access to such α‚β-unsaturated N-acylhydrazones‚ which are building blocks in the synthesis of nitrogen-containing
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BIBLIOGRAPHY Barber‚ C. 2000. The English Language. A Historical Introduction. Cambridge: Cambridge University Press. Baugh‚ A. and T. Cable. 2002. A History of the English Language‚ 5th edition. London: Routledge. Bejan‚ N. and Elena Asandei. 1981. Contemporary English Language: Syntax and Lexicology. Galaţi: Editura Universităţii din Galaţi. Brook‚ G. L. 1981. Words in Everyday Life. London: The Macmillan Press. Cannon‚ G. 1987. Historical Change and English
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together Wavelength: the distance between similar points along a wave Compound light microscope: is an optical instrument comprised of more than one lens and uses light to illuminate the object under study Electron microscope: can provide magnifications in the vicinity of 1 to 2 million power Cell: is a fundamental anatomic until in which all life is contained 2. List and describe the features of four different types of compound light microscopes. Bright field Microscope: Field is bright wit
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C H A P T E R I The ways in which new words are formed‚ and the factors which govern their acceptance into the language‚ are generally taken very much for granted by the average speaker. To understand a word‚ it is not necessary to know how it is constructed‚ whether it is simple or complex‚ that is‚ whether or not it can be broken down into two or more constituents. We are able to use a word which is new to us when we find out what object or notion it denotes. Some words‚ of course‚ are more
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Chromatography • • • Separation based on polarity of compounds Two potential phases for a compound to exist in: mobile and stationary Partitioning of compounds between mobile phase and stationary phase occurs: o Compounds that are less polar move more in the mobile phase‚ those that are more polar “stick” more on the stationary phase o These polarity differences cause compounds move at different rates and therefore can be separated 1. Mobile Phase: the phase the moves; can be gas or
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