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What is the density of an object that has a volume of
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Chemistry
- The following are properties of substances. Decide whether each is a physical property or a chemical property. a Chlorine gas liquefies at 35C under normal pressure. b Hydrogen burns in chlorine gas. c Bromine melts at 7.2C. d Lithium is a soft, silvery-colored metal. e Iron rusts in an atmosphere of moist air.arrow_forwardThe estimated amount of recoverable oil from the field at Prudhoc Bay in Alaska is 1.3 1010 barrels. What is this amount of oil in cubic meters? One barrel = 42 gal (exact), 1 gal = 4 qt (exact), and 1 qt = 9.46 104 m3.arrow_forwardProviding no reaction occurs, a solid will float on any liquid that is more dense than it is. The volume of a piece of calcite weighing 35.6 g is 12.9 cm3. On which of the following liquids will the calcite float: carbon tetrachloride (density = 1.60 g/cm3), methylene bromide (density = 2.50 g/cm3), tetrabromoethane (density = 2.96 g/cm3), or methylene iodide (density = 3.33 g/cm3)?arrow_forward
- A sample of a bright blue mineral was weighed in air, then weighed again while suspended in water. An object is buoyed up by the mass of the fluid displaced by the object. In air, the mineral weighed 7.35 g; in water, it weighed 5.40 g. The densities of air and water are 1.205 g/L and 0.9982 g/cm3, respectively. What is the density of the mineral?arrow_forwardWhat is the difference in surface area between two circles, one of radius 7.98 cm, the other of radius 8.50 cm? The surface area of a circle of radius r is r2. Obtain the result to the correct number of significant figures.arrow_forwardWhich occupies a larger volume, 600 g of water (with a density of 0.995 g/cm3) or 600 g of lead (with a density of 11.35 g/cm3)?arrow_forward
- A solution is prepared by dissolving table salt, sodium chloride, in water at room temperature. a Assuming there is no significant change in the volume of water during the preparation of the solution, how would the density of the solution compare to that of pure water? b If you were to boil the solution for several minutes and then allow it to cool to room temperature, how would the density of the solution compare to the density in part a? c If you took the solution prepared in part a and added more water, how would this affect the density of the solution?arrow_forwardUltrapure silicon is used to make solid-state devices, such as computer chips. What is the mass of a circular cylinder of silicon that is 12.40 cm long and has a radius of 4.00 cm? The density of silicon is 2.33 g/cm3.arrow_forward5. Calculate the mass of aluminum that occupies the same volume as 95.7 g of cobalt. The density of cobalt is 8.90 g/cm^3 and the density of aluminum is 2.71 g/cm^3arrow_forward
- 6. What is the mass, in g, of a piece of iron that has a volume of 1.50 x 10² and a density of 7.20 g/mL?arrow_forwardThe density of lithium is 0.530 g/cm^3 what is the volume occupied by 1.20 x 10^3 g oflithium?arrow_forwardWhat is the volume of a gold nugget that has a mass of 2.20 kg? The density of gold is: 19 g/cm3 8.60 x 103 cm3 116 cm3 0.116 cm3 8.60 cm3 11.6 cm3arrow_forward
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