Chapter 1: Problem 16
You are driving \(65 \mathrm{mi} / \mathrm{h}\) and take your eyes off the road for "just a second." What distance (in feet) do you travel in this time?
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Chapter 1: Problem 16
You are driving \(65 \mathrm{mi} / \mathrm{h}\) and take your eyes off the road for "just a second." What distance (in feet) do you travel in this time?
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The properties of a mixture are typically averages of the properties of its components. The properties of a compound may differ dramatically from the properties of the elements that combine to produce the compound. For each process described below, state whether the material being discussed is most likely a mixture or a compound, and state whether the process is a chemical change or a physical change. a. An orange liquid is distilled, resulting in the collection of a yellow liquid and a red solid. b. A colorless, crystalline solid is decomposed, yielding a pale yellow-green gas and a soft, shiny metal. c. A cup of tea becomes sweeter as sugar is added to it.
You have a \(1.0-\mathrm{cm}^{3}\) sample of lead and a \(1.0-\mathrm{cm}^{3}\) sample of glass. You drop each in separate beakers of water. How do the volumes of water displaced by each sample compare? Explain.
Round off each of the following numbers to the indicated number of significant digits and write the answer in standard scientific notation. a. \(0.00034159\) to three digits b. \(103.351 \times 10^{2}\) to four digits c. \(17.9915\) to five digits d. \(3.365 \times 10^{5}\) to three digits
Indicate the number of significant figures in each of the following: a. This book contains more than 1000 pages. b. A mile is about \(5300 \mathrm{ft}\). c. A liter is equivalent to \(1.059\) qt. d. The population of the United States is approaching \(3.0 \times 10^{2}\) million. e. A kilogram is \(1000 \mathrm{~g}\). f. The Boeing 747 cruises at around \(600 \mathrm{mi} / \mathrm{h}\).
Diamonds are measured in carats, and 1 carat \(=0.200 \mathrm{~g}\). The density of diamond is \(3.51 \mathrm{~g} / \mathrm{cm}^{3}\). a. What is the volume of a \(5.0\) -carat diamond? b. What is the mass in carats of a diamond measuring \(2.8 \mathrm{~mL}\) ?
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