Download Chemistry in Focus: A Molecular View of Our World by Nivaldo J. Tro PDF

By Nivaldo J. Tro

Completely revised and up-to-date with the most recent examine advancements, CHEMISTRY IN concentration: A MOLECULAR VIEW OF OUR global, 4e develops scholars' appreciation for the molecular international and stresses the basic function it performs of their day-by-day lives. The textual content is helping scholars comprehend the main clinical, technological, and environmental matters affecting society by means of truly settling on and explaining connections among the molecular global and microscopic world--as good as among rules and purposes. popular for his student-friendly procedure, Dr. Tro is helping readers comprehend the significance and relevance of chemistry to their global. The text's complete assurance comprises precise chapters on Nanotech, Light/Color, and extra. cutting edge examine aids maximize studying

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Additional resources for Chemistry in Focus: A Molecular View of Our World

Example text

Although some Greek philosophers, such as Aristotle, spent a great deal of time observing and describing the natural world, they did not emphasize experimentation and the modification of ideas based on the outcomes of experiments. What if the Greeks had placed a greater emphasis on experimentation? What if Democritus had set out to prove his atomistic view of matter by performing experiments? Where do you think science might be today? 7 The Classification of Matter 11 The scientific method progressed nonetheless, and alchemy was transformed into chemistry.

Use this table to determine if the substance is an element. If the substance is not listed in the table, but is a pure substance, then it must be a compound. If the substance is not a pure substance, then it is a mixture. a. Copper is listed in the table of elements. It is an element. b. Water is not listed in the table of elements, but it is a pure substance; therefore, it is a compound. FIGURE 1-7 Air is a mixture whose major components are nitrogen (blue) and oxygen (red). Seawater is a mixture whose primary components are water and salt.

Classify each of the following properties as chemical or physical. a. the tendency of dry ice to vaporize directly from a solid to a gas b. the flammability of LP gas c. the boiling point of water d. the smell of cologne 26. Classify each of the following properties as chemical or physical. a. the tendency of silver to tarnish b. the flammability of alcohol c. the volitility (ease of vaporization) of alcohol d. the malleability (ability to be pounded into sheets) of metal 27. Classify each of the following changes as physical or chemical.

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