Chemical formulae

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  • Chemical substances (also called pure substances) may well be defined as "any material with a definite chemical composition" in an introductory general chemistry textbook.[2] According to this definition a chemical substance can either be a pure chemical element or a pure chemical compound. But, there are exceptions to this definition; a pure substance can also be defined as a form of matter that has both definite composition and distinct properties.[3] The chemical substance index published by CAS also includes several alloys of uncertain composition.

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  • Tham khảo sách 'project gutenberg's on the antiquity of the chemical art, by james mactear', khoa học tự nhiên, hoá học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • The first edition of Toxicological Chemistry (1989) was written to bridge the gap between toxicology and chemistry. It defined toxicological chemistry as the science that deals with the chemical nature and reactions of toxic substances, their origins and uses, and the chemical aspects of their exposure, transformation, and elimination by biological systems. It emphasized the chemical formulas, structures, and reactions of toxic substances. The second edition of Toxicological Chemistry (1992) was significantly enlarged and increased in scope compared to the first edition.

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  • Chemists frequently refer to chemical compounds using chemical formulae or molecular structure of the compound. There has been a phenomenal growth in the number of chemical compounds being synthesized (or isolated), and then reported in the scientific literature by professional chemists around the world.[13] An enormous number of chemical compounds are possible through the chemical combination of the known chemical elements. As of May 2011, about sixty million chemical compounds are known.

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  • Outside of Chicago’s City Hall is a giant Picasso sculpture of a weeping woman. For the more artistically challenged, it takes quite a while before you can “see” it, before you can really make out what Picasso was getting at and how he got there. Five miles to the south of City Hall, in the basement of the University of Chicago’s Chemistry Department, lies a piece of glassware of which the great artist would have been proud. Again to the uninitiated, it takes quite a while to “see” it. It looks like a deranged spider; indeed, those who work with it call it the Tarantula.

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  • Isomers: Compounds with the same molecular formula but different structural formulas. Different compounds that have the same molecular formula – but differ in their connectivity. Isomers that differ in the way their atoms are arranged in space

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  • The Project Gutenberg EBook of The Handbook of Soap Manufacture, by W. H. Simmons and H. A. Appleton This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.net Title: The Handbook of Soap Manufacture Author: W. H. Simmons H. A. Appleton Release Date: June 7, 2007

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  • The Physical Chemistry In Brief offers a digest of all major formulas, terms and definitions needed for an understanding of the subject. They are illustrated by schematic figures, simple worked-out examples, and a short accompanying text. The concept of the book makes it different from common university or physical chemistry textbooks. In terms of contents, the Physical Chemistry In Brief embraces the fundamental course in physical chemistry as taught at the Institute of Chemical Technology, Prague, i.e.

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  • Mời các bạn cùng tham khảo tiếp phần 2 của cuốn sách The language of Chemistry, Food and Biological Technology in English (ngôn ngữ tiếng anh chuyên ngành công nghệ hóa học, công nghệ thực phẩm và công nghệ sinh học) do GS.TS. Nguyễn Thị Hiền làm chủ biên để nắm bắt thêm những thông tin kiến thức về: Grammar, The exercises, Vocabulary, Reading chemical and mathematical signs and Formulas,... Mời các bạn cùng tham khảo để nắm bắt nội dung chi tiết của cuốn sách.

     

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  • The Project Gutenberg EBook of An Elementary Study of Chemistry, by William McPherson and William Edwards Henderson This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.org Title: An Elementary Study of Chemistry Author: William McPherson William Edwards Henderson Release Date: March 18, 2007

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  • Wide agreement as to a clear and useful nomenclature is of great benefit in any field of science. The nomenclature here presented merits wide acceptance among terpene and other interested chemists because of the thorough way in which the careful work was done. Many versed in the chemistry of terpenes and many others experienced in naming chemical compounds were consulted. Full opportunity for criticism was offered.

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  • Project Gutenberg's Conversations on Chemistry, V. 1-2, by Jane Marcet This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.org Title: Conversations on Chemistry, V. 1-2 In Which the Elements of that Science Are Familiarly Explained and Illustrated by Experiments Author: Jane Marcet Release Date: October 13, 2008...

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  • Congratulations. You have just purchased the most complete and informative book on recreational drug manufacture available. It is based upon a great deal of experience and a tremendous amount of research. I have used easy to understand terms to aid in comprehension of the formulas given and in the theory involved. I have patterned this book after what would appear to be a college textbook or a college accredited correspondence course in illicit drug manufacturing. Please follow carefully my instructions and advice on safety, purification, and referred to reading....

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  • I n simple terms, intellectual property is a product of the human intellect that has commercial value. Intellectual property encompasses a wide range of creations—from fiction, poetry, songs, designs, and artwork to ads, product names, mechanical inventions, processes, chemical formulas, machines, and software. The commercial value of intellectual property comes from the ability of its owner to control its use. If the owner could not legally require payment in exchange for use, ownership of the intellectual property would have intellectual worth but no commercial value....

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  • The Project Gutenberg EBook of A Handbook of Laboratory Glass-Blowing, by Bernard D. Bolas This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.net Title: A Handbook of Laboratory GlassBlowing Author: Bernard D. Bolas Illustrator: Naomi Bolas Release Date: June 24, 2010

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  • Project Gutenberg's The Chemistry of Hat Manufacturing, by Watson Smith This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.org Title: The Chemistry of Hat Manufacturing Lectures Delivered Before the Hat Manufacturers' Association Author: Watson Smith Editor: Albert Shonk Release Date: February 10, 2006

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  • Tham khảo sách 'a textbook of assaying: for the use of those connected with mines', khoa học tự nhiên, hoá học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • The technique now known as MS has its roots in atomic physics at the beginning of the twentieth century, when it was originally applied by physicists toward answering questions on the nature of atoms. Throughout much of the 1800s, the prevailing wisdom held that atoms were indivisible, that all atoms of a given element had the same mass, and that the masses of all elements were multiples of the mass of hydrogen [7–9].

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  • The Project Gutenberg EBook of Experiments upon magnesia alba, Quicklime, and some other Alcaline Substances, by Joseph Black This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.net Title: Experiments upon magnesia alba, Quicklime, and some other Alcaline Substances Author: Joseph Black Release Date: February 13, 2008 ...

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  • (BQ) Part 1 book "General, organic, and biological chemistry" has contents: Basic concepts about matter, measurements in chemistry, atomic structure and the periodic table, chemical bonding the covalent bond model, chemical calculations - formula masses, moles, and chemical equations,...and other contents.

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