Simple software for learning basic English vocabulary, e.g. months, jobs, fruit, vegetables, capitals, continents, historical data, symbols of chemical elements, etc. The program is accompanied with a test editor.
General Chemistry: The Essential Concepts (6th Edition)
The sixth edition of General Chemistry continues the tradition of presenting only the material that is essential for a one-year general chemistry course. It strikes a balance between theory and application by incorporating real-world examples; helping students visualize the three-dimensional atomic and molecular structures that are the basis of chemical activity; and developing problem-solving and critical thinking skills.
This is the first ever book devoted entirely to the chemical ecology of algae. Algae from both marine and freshwater habitats are covered, as are macroalgae (seaweeds) and microalgae (including phytoplankton). While its main emphasis is on the ecological rather than chemical aspects of the field, the book also includes a unique introductory chapter intended as a primer on algal natural products chemistry for ecologists. It elucidates the roles of chemical defenses in various regions and habitats, of DMSP, oxidative burst responses, and herbivore offense.
This compact desk reference is the new single-volume abridgment of the world-renowned "bible" of chemical technology, the Kirk-Othmer Encyclopedia of Chemcial Technology. Masterfully distilling the essence of this larger work into a useful daily tool, it makes the parent Encyclopedia's comprehensive, authoraitative, and lucidly-written data instantly available in an extremely convenient and user-friendly form.
Harding's outstanding debut unfurls the history and final thoughts of a dying grandfather surrounded by his family in his New England home. George Washington Crosby repairs clocks for a living and on his deathbed revisits his turbulent childhood as the oldest son of an epileptic smalltime traveling salesman. The descriptions of the father's epilepsy and the cold halo of chemical electricity that encircled him immediately before he was struck by a full seizure are stunning, and the household's sadness permeates the narrative as George returns to more melancholy scenes.
