Atoms and bonding

Two of the main distinctions between chemical engineers and other engineering disciplines are the topics of mass and energy balances. Within these two topics there are a lot of underlying chemical principles that help chemical engineers to perform calculations to determine what is happening in a system, allowing better control of a process.

125p tuanloc_do 04-12-2012 51 11   Download

(bq) part 1 book "modern physical metallurgy and materials engineering" has contents: the structure and bonding of atoms, atomic arrangements in materials, defects in solids, the characterization of materials, the physical properties of materials.

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The structure and dynamics of proteins and enzymatic activity is intrinsically linked to the strength and positions of hydrogen bonds in the system.[1] A hydrogen bond results from an attractive force between an electronegative atom and a hydrogen atom.[2] The hydrogen is attached to a strongly electronegative heteroatom, such as oxygen or nitrogen, termed the hydrogen- bond donor. This electronegative atom decentralizes the electron cloud around the hydrogen nucleus, leaving the hydrogen atom with a positive partial charge.

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The informational efficiency of the bond market relative to the stock market has received increasing attention in recent years. For example, Kwan (1996) finds, using daily data, that stock returns lead bond returns, suggesting that stocks may be informationally more efficient than bonds, while Hotchkiss and Ronen (2002) find, using higher-frequency (intra- day) data, that the informational efficiency of corporate bonds is similar to that of the underlying stocks.

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(bq) part 1 book "beginning chemistry" presents the following contents: basic concepts, atoms and atomic masses, electronic configuration of the atom, chemical bonding, inorganic nomenclature, formula calculations.

61p thangnamvoiva6 19-07-2016 22 2   Download

Quantum Mechanics and the Hydrogen Atom, Many-Electron Atoms and Chemical Bonding, Molecular Orbitals, Spectroscopy, and Chemical Bonding,... as the main contents of the lesson lecture 9 "Tentative material to be covered for Exam 2". Invite you to consult the lesson for more documents serving the academic needs and research.

38p nguyenphong201 11-12-2015 24 1   Download

Lecture Biology: Concepts and connections: Chapter 2 - The chemical basis of life. The main contents of this chapter include all of the following: Elements, atoms, and compounds; chemical bonds; water's life supporting properties.

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Lecture Campbell biology: Concepts and connections (Seventh edition) - Chapter 2: The chemical basis of life. In this chapter we will discuss: Elements, atoms, and compounds; chemical bonds; water's life supporting properties.

68p tradaviahe14 27-01-2021 3 0   Download

The first two chapters of the text cover a variety of topics that you need to get started with your study of organic chemistry. Chapter 1 reviews the topics from general chemistry that will be important to your study of organic chemistry. The chapter starts with a description of the structure of atoms and then proceeds to a description of the structure of molecules. Molecular orbital theory is introduced. Acid–base chemistry, which is central to understanding many organic reactions, is reviewed.

1228p thanlancon_lovely 21-03-2013 170 70   Download

Enzymes are proteins that catalyze chemical reactions. A protein is simply a polypeptide composed of amino acids linked by a peptide bond, and the term generally, but not always, refers to the folded conformation. To understand how an enzyme functions, including its binding and functional properties, it is necessary to know the properties of the amino acids and how the amino acids are linked together, including the torsion angles of the bonds and the space occupied, and the interactions of the atoms leading to the final conformations of the folded protein.

41p sinh_30 27-09-2010 135 35   Download

This is a book about plant chemistry written by a herbalist with no claims of being a chemist. Having a driving ambition to understand the nature of herbal medicines—in particular what makes them work—I delved head first into the previously alien world of atoms, molecules and bonds. Having learned enough to be engaged to teach the topic to budding herbalists and naturopaths, I set about formalising the teaching notes—the result is the original (1996) edition of this text.

185p maket1311 16-10-2012 80 22   Download

Comprehensive manual embracing essentially all the classical and modern areas of chemical kinetics. Provides details of modern applications in chemistry, technology and biochemistry. Special sections of the book treat subjects not covered sufficiently in other manuals, including: modern methods of experimental determination of rate constants of reactions including laser pico- and femtochemistry, magnetochemistry, and ESR; and descriptions of advanced theories of elementary chemical processes.

563p buoi_chieu 23-04-2013 75 20   Download

The beginning student in Organic Chemistry is often overwhelmed by facts, concepts, and new language. Each year, textbooks of Organic Chemistry grow in quantity of subject matter and in level of sophistication. This Schaum’s Outline was undertaken to give a clear view of first-year Organic Chemistry through the careful detailed solution of illustrative problems. Such problems make up over 80% of the book, the remainder being a concise presentation of the material. Our goal is for students to learn by thinking and solving problems rather than by merely being told....

478p kinhdo0908 11-10-2012 50 18   Download

Chemical reactions (abiotic reactions) are “classical” chemical reactions that are not mediated by bacteria. They may include reaction processes such as precipitation, hydrolysis, complexation, elimination, substitution etc. that transform chemicals to other chemicals and potentially alter their phase/state (solid, liquid, gas, dissolved). Precipitation is the removal of ions from solution by the formation of insoluble compounds, i.e. a solid-phase precipitate. Hydrolysis is a process of chemical reaction by the addition of water.

208p cao_can 29-12-2012 57 13   Download

Physical properties of metals, ceramics, and polymers, such as ductility, thermal expansion, heat capacity, elastic modulus, electrical conductivity, and dielectric and magnetic properties, are a direct result of the structure and bonding of the atoms and ions in the material. An understanding of the origin of the differences in these properties is of great engineering importance.

24p liemthanh 16-12-2009 100 11   Download

(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.

501p bautroibinhyen20 06-03-2017 33 10   Download

(bq) part 1 book "chemistry for engineering students" has contents: introduction to chemistry, atoms and molecules, molecules, moles, and chemical equations; stoichiometry; gases; the periodic table and atomic structure; chemical bonding and molecular structure; molecules and materials; energy and chemistry.

348p bautroibinhyen20 06-03-2017 37 8   Download

(bq) part 1 book "world of chemistry" presents the following contents: chemistry - an introduction, matter, chemical foundations - elements, atoms and ions, nomenclature, measurements and calculations, chemical composition, modern atomic theory, chemical bonding,...

465p thangnamvoiva6 19-07-2016 48 7   Download

(bq) part 1 book "instant notes - inorganic chemistry" has contents: atomic structure, introduction to inorganic substances, structure and bonding in molecules, structure and bonding in solids, chemistry in solution.

157p bautroibinhyen20 06-03-2017 27 7   Download

A covalent bond results when two atoms share electrons in such a way that each atom has an octet of electrons in the outer shell. In a hydrogen atom, the outer shell is complete when it contains two electrons. If hydrogen is in the presence of a strong electron acceptor, it gives up its electron to become a hydrogen ion (H+). But if this is not possible, hydrogen can share with another atom and thereby have a completed outer shell. For example, one hydrogen atom will share with another hydrogen atom. Their two orbitals overlap,...

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