Choose the homogeneous mixture from the list below. A) air B) blood C) carbonated soda D) trail mix E) chocolate chip cookies Read the length of the metal bar with the correct number of significant figures. A) 15.00 cm B) 15.000 cm C) 15.0 cm D) 20 cm E) 15 cm Because of the high heat and low humidity in the summer in Death Valley, California, a visitor requires about one quart of water for every two miles traveled on foot. Calculate the approximate number of liters required for a person to walk 10. kilometers in Death Valley. A) 2.9 L B) 47 L C) 30 L D) 12 L The mass of a single zinc atom is 1.086 times 10^-22 g. This is the same mass as A) 1.086 times 10^-25 kg. B) 1.086 times 10^-31 ng. C) 1.086 times 10^-28 mu g. D) 1.086 times 10^-16 mg. Convert 10 cm^3 to m^3. A) 1 times 10^-5 m^3 B) 1 times 10^-1 m^3 C) 1 times 10^7 m^3 D) 1 times 10^3 m^3 How many xenon atoms are contained in 2.36 moles of xenon? A) 2.55 times 10^23 xenon atoms B) 3.92 times 10^24 xenon atoms C) 1.87 times 10^26 xenon atoms D) 1.42 times 10^24 xenon atoms E) 7.91 times 10^25 xenon atoms Give the symbol for fluorine. A) Fl B) Fu C) Fo D) Fr E) F How many silver atoms are contained in 3.75 moles of silver? A) 1.23 times 10^24 silver atoms B) 2.44 times 10^26 silver atoms C) 6.50 times 10^25 silver atoms D) 2.26 times 10^24 silver atoms E) 1.61 times 10^23 silver atoms