By John W. Moore, Conrad L. Stanitski, Peter C. Jurs
Your scholars might be interact within the lively learn of chemistry with CHEMISTRY: THE MOLECULAR technology, Fourth variation. Authors Moore, Stanitski, and Jurs infuse their textual content with well timed functions that exhibit chemistry as a full of life and suitable topic that's basic to a extensive variety of disciplines corresponding to engineering, biology, and environmental technology. The Fourth version beneficial properties an stronger problem-solving method, an entire revision of its award-winning paintings software to even larger support scholars visualize chemical procedures at a molecular point, built-in assurance of natural and biochemistry content material, and whole media integration with OWL on-line internet studying and move Chemistry. New content material, extra visualization difficulties, up to date purposes in a variety of disciplines, and precise new end-of-chapter "grid" questions in accordance with award-winning chemistry schooling study were extra during the textual content. additionally, the various book's end-of-chapter questions are followed by means of interactive, assignable, on-line classes in OWL--the number 1 on-line studying method for chemistry.
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Extra resources for Chemistry: The Molecular Science (4th Edition)
Testing a hypothesis may involve collecting qualitative or quantitative data. The observation that extracts from the bark of the Pacific yew killed cancer cells was qualitative: It did not involve numeric data. It was clear that there was an effect, but further studies were needed to find out how significant the effect was. Quantitative information is obtained from measurements that produce numeric data. Studies of the paclitaxel analog “13a” discovered in 2004 showed that it was 20 times more active than paclitaxel against ovarian cancer cells.
Instructor’s Solutions Manual by Judy L. Ozment, Pennsylvania State University. Contains fully worked-out solutions to all end-of-chapter questions, Summary Problems, and Conceptual Challenge Problems. Solutions match the problem-solving strategies used in the text. Available on the instructor’s PowerLecture CD/DVD. OWL: Online Web by Roberta Day and Beatrice Botch, University of Massachusetts, Amherst and William Vining, State University of New York at Oneonta. Instant Access to OWL (four semesters) ISBN-10: 0-495-05099-7, ISBN-13: 978-0-495-05099-5 Instant Access to OWL (one semester) ISBN-10: 0-495-38442-9, ISBN-13: 978-0-495-38442-7 Instant Access to OWL e-Book (four semesters) ISBN-10: 0-538-73817-0, ISBN-13: 978-0-538-73817-0 Instant Access to OWL e-Book (one semester) ISBN-10: 0-538-73815-4, ISBN-13: 978-0-538-73815-6 Featuring an updated and more intuitive instructor interface, OWL offers more assignable, gradable content (including end-of-chapter questions specific to each textbook), more reliability, and more flexibility than any other system.
A successful hypothesis is often designated as a theory—a unifying principle that explains a body of facts and the laws based on them. A theory usually suggests new hypotheses and experiments, and, like a law, it may have to be modified or even discarded if contradicted by new experimental results. A model makes a theory more concrete, often in a physical or a mathematical form. Models of molecules, for example, were important in determining how paclitaxel binds to tubulin and kills cells. Molecular models can be constructed by using spheres to represent atoms and sticks to represent the connections between the atoms.