• 1013Alpha/Organic Chemistry Set for Student

    With a new manufacturer and improved production process, our model sets have upgraded to the new "α (Alpha)" series. Please be advised that there is a possibility that the new Alpha series sets and the previous Polyhedron sets and parts may not be compatible.

    • ASIN: 0998549754

  • Molymod MMS-009 Inorganic/Organic Chemistry Molecular Model, Student Set (52 atom parts)

    The Molymod MMS-009 inorganic/organic molecular model set for students in grades 7-12 includes 52 color-coded plastic atom parts and 37 links in a storage box. This set provides students a hands-on activity to visually model inorganic molecules, empirical formula representations, organic structures, and other concepts of inorganic and organic chemistry. Students can model molecules such as carbon dioxide, ammonia, sulfuric acid, calcium hydroxide, metal salts, copper sulfate, alkanes, alcohols, glucose, and benzene. The atom parts and links for assembling models are made from durable plastic and are color coded to national standards for ease of identification. Atom parts range from 17mm to 23mm in diameter and represent carbon, nitrogen, oxygen, hydrogen, sulfur, phosphorus, halogen, and metal. Additionally, it contains 4 brown atoms, 3 beige lone pair 2D paddles, 20 medium length grey links, 5 medium purple links, 12 flexible long grey links, one link remover tool, and instructions. The kit comes in a plastic box for ease of storage.Science education products incorporate applied math and science principles into classroom and homeschool-based projects. Teachers in pre-K, elementary, and secondary classrooms use science education kits and products alongside science, technology, en...

    • Brand: Molymod
    • ASIN: B005NWGISS
    • UPC: 884413000990

  • R For Dummies

    Mastering R has never been easier Picking up R can be tough, even for seasoned statisticians and data analysts. R For Dummies, 2nd Edition provides a quick and painless way to master all the R you'll ever need. Requiring no prior programming experience and packed with tons of practical examples, step-by-step exercises, and sample code, this friendly and accessible guide shows you how to know your way around lists, data frames, and other R data structures, while learning to interact with other programs, such as Microsoft Excel. You'll learn how to reshape and manipulate data, merge data sets, split and combine data, perform calculations on vectors and arrays, and so much more. R is an open source statistical environment and programming language that has become very popular in varied fields for the management and analysis of data. R provides a wide array of statistical and graphical techniques, and has become the standard among statisticians for software development and data analysis. R For Dummies, 2nd Edition takes the intimidation out of working with R and arms you with the knowledge and know-how to master the programming language of choice among statisticians and data analysts worldwide. Covers downloading, installing, and configuring R Includes tips for getting data in and ou...

    • Brand: John Wiley & Sons Inc
    • ASIN: 1119055806

  • HGS Molecular Structure Model Organic Chemistry Set

    Will be shipped from US. Used books may not include companion materials, may have some shelf wear, may contain highlighting/notes, may not include CDs or access codes. 100% money back guarantee.

    • ASIN: 0805302603

  • 1002A/Organic Chemistry Introductory A-Set

    This is an introductory set for high school or undergraduate students who are studying Organic Chemistry. Tetrahedral carbon, nitrogen, and oxygen atoms are included together with hydrogen atoms and an octahedral metal atom. These are useful for constructing cyclic and acyclic saturated hydrocarbons, alcohols, amines, etc. The models are also useful for understanding the stereochemistry, i.e., configuration and conformational change. In this set, it should be noted that to assemble unsaturated compounds containing double and/or triple bonds, it is necessary to use bent bonds. For example, two tetrahedral carbon atoms are connected by two bent bonds giving a C=C double bond, which is used in a classical sense.

    • ASIN: 4902897504

  • 5030 / Organic Chemistry Se (HGS Biochemistry Molecular Model)

    HGS Biochemistry Molecular Model. This type of molecular model is designed with the scale factor of 1 =1cm. One can easily visualize the actual size of molecules by using this scale factor. Models of macromolecules such as various protein cells, nucleic acids, and carbohydrates can be readily constructed. A set of a frame, stands and supporting rods with clamps will assist in balancing the atom positions in the complex macromolecular models. These parts also make it possible to accurately construct complex macromolecular models that are strong, distortion free, and lightweight.

    • ASIN: 4902897474

  • 1013A /Organic Chemistry Set for Student (HGS Polyhedron Molecular Model)

    Shows some signs of wear, and may have some markings on the inside. 100% Money Back Guarantee.

    • ASIN: B0030TS0M8

  • The Structure of Models of Peano Arithmetic (Oxford Logic Guides)

    Aimed at research logicians and mathematicians, this much-awaited monograph covers over forty years of work on relative classification theory for non-standard models of arithmetic. With graded exercises at the end of each chapter, the book covers basic isomorphism invariants: families of types realized in a model, lattices of elementary substructures and automorphism groups. Many results involve applications of the powerful technique of minimal types due to Haim Gaifman, and some of the results are classical but have never been published in a book form before.

    • ASIN: 0198568274

  • Corrosion and its Consequences for Reinforced Concrete Structures (Structures Durability in Civil Engineering Set)

    Corrosion and its Consequences for Reinforced Concrete Structures serves as an indispensable guide for engineers, scientists and researchers, exploring the fundamental aspects of corrosion in reinforced concrete. Its originality lies in the coupling between the reinforcement corrosion of reinforced concrete and its mechanical behavior.The authors describe the specific theoretical foundations of the corrosion of steel in concrete and its interactions with the structural aspects, including service cracking and defects in the placement of concrete. The book contains a study of the mechanisms of degradation of the mechanical behavior of reinforcements and the reinforced concrete composite, such as reduction of ductility, bearing capacity, redistribution of efforts by formation of plastic hinges and increase in the beam deflection in service. A diagnostic method based on corrosion-induced crack detection is presented in the book, and then paired with a recalculation method which allows us to predict the different aspects of the residual mechanical behavior. Several end-of-life ELS and ELU criteria are described, and the authors propose an approach to estimate the residual lifetime. Finally, the book presents the cathodic protection that allows the progression of corrosion to be conta...

    • ASIN: 1785482343

  • Molecular Model Kit with Molecule Modeling Software and User Guide - Organic, Inorganic Chemistry Set for Building Molecules - Dalton Labs 178 Pcs Advanced Chem Biochemistry Student Edition

    Welcome to the world of DaltonLABS! A world of fun and creative visual education! This Molecular Model Kit has a total of 178 pieces including a link remover. Super easy to build models for Organic and Inorganic Chemistry, models such as: alkanes, alkenes, alkynes, alkyl halides, alcohols, ethers, aldehydes, ketones, carboxylic acids, nitriles, amines, esters, aromatic compounds, heterocyclic compounds, and more. All parts are made of durable and sturdy plastic which are color coded to national standards. This is a great set for both students and teachers to aid in course studies! What's in the box? • Carbon - black (23) • Hydrogen - white (20) • Oxygen - red (8) • Nitrogen (3 holes)- blue (2) • Nitrogen (4 holes) - blue (2) • Metal Atoms (1 hole) - silver (1) • Phosphorus - purple (1) • Sulfur (4 holes) - yellow (2) • Sulfur (6 holes) - yellow (2) • Chlorine - green (8) • Pi Orbitals - purple (6) • Pi Orbitals - pink (6) • P Orbitals - purple (6) • P Orbitals - pink (6) • P Orbitals - beige (6) • Single Bonds (26) • Long/Double Bonds (26) • Short Single Bonds (26) • Bond Removal Tool (1) DaltonLABS is a proud USA family-owned business with a passion for learning! DaltonLABS uses only the highest quality materials for our products. Your s...

    • Brand: Dalton Labs
    • ASIN: B01AXZV94M
    • UPC: 636160908438