By John C. Kotz, Paul M. Treichel, John Townsend

CHEMISTRY & CHEMICAL REACTIVITY, 7e, combines thorough guide with robust multimedia instruments to offer you a deeper realizing of normal chemistry thoughts. The e-book has a long-standing recognition for logical association; macro to micro orientation; an effective artwork software; and state-of-the artwork media, that's elevated within the new version. The textual content in actual fact emphasizes the visible nature of chemistry and illustrates the shut interrelationship of the macroscopic, symbolic, and particulate degrees of chemistry. With transparent writing, seamless know-how integration, and powerful homework/assessment instruments, CHEMISTRY & CHEMICAL REACTIVITY, 7e, equips you with instruments to empower the mastery, project, and evaluation of chemical ideas. The text's artwork software unearths those 3 degrees in attractive detail--and is totally built-in with new key media elements. The Web-based instructional CengageNOW™ generates a personalised examine plan to satisfy your particular wishes and contains pass Chemistry mini video lectures and flash playing cards that supply the right speedy overview for college students at the pass. totally customizable OWL is an online homework method that maximizes examine time and gives an non-compulsory ebook. With 1000s of guided simulations, animations, movies, and extra, CHEMISTRY & CHEMICAL REACTIVITY, 7e, is extra thoroughly built-in with accompanying expertise than the other textual content out there.

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Scerri is the founder and editor of the international journal Foundations of Chemistry and recently authored The Periodic Table: Its Story and Its Significance (Oxford University Press, 2007), which has been described as the definitive book on the periodic table. He is also the author of more than 100 articles on the history and philosophy of chemistry, as well as chemical education. At UCLA, Scerri regularly teaches general chemistry classes of 350 students and smaller classes in the history and philosophy of science.

A second feature of a pure substance is that it generally cannot be separated into two or more different species by any physical technique at ordinary temperatures. If it could be separated, our sample would be classified as a mixture. 10 Chapter 1 | Basic Concepts of Chemistry a and c, Charles D. Winters; b, Kenneth Eward/BioGrafx/ Photo Researchers, Inc. 10 Mixtures. (a) A cup of noodle soup is a heterogeneous mixture. (b) A sample of blood may look homogeneous, but examination with an optical microscope shows it is, in fact, a heterogeneous mixture of liquids and suspended particles (blood cells).

The pipet will deliver and the volumetric flask will contain the specified volume at the indicated temperature. 6 Physical and Chemical Changes Changes in physical properties are called physical changes. In a physical change, the identity of a substance is preserved even though it may have changed its physical state or the gross size and shape of its pieces. A physical change does not result in a new chemical substance being produced. The substances (atoms, molecules, or ions) present before and after the change are the same.

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