practicefinalmcmu - Exam Name MULTIPLE CHOICE Choose the...

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Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following elements has chemical properties similar to oxygen? A) sulfur B) fluorine C) hydrogen D) nitrogen 1) 2) Convert 5.100 ˛ 10 -3 to ordinary notation. A) 0.0005100 B) 510.0 C) 0.005100 D) 5100 2) 3) Convert 0.003002 to standard scientific notation. A) 3.002 ˛ 10 3 B) 3002 ˛ 10 -6 C) 3.002 ˛ 10 -3 D) 3002 ˛ 10 6 3) 4) The mass of a proton is 1.67 ˛ 10 -27 kg. What is the mass of a proton in Gigagrams? A) 1.67 ˛ 10 -36 Gg B) 1.67 ˛ 10 -30 Gg C) 1.67 ˛ 10 -39 Gg D) 1.67 ˛ 10 -33 Gg 4) 5) The average distance between nitrogen and oxygen atoms is 115 pm in a compound called nitric oxide. What is this distance in centimeters? A) 1.15 ˛ 10 -9 cm B) 1.15 ˛ 10 12 cm C) 1.15 ˛ 10 -8 cm D) 1.15 ˛ 10 16 cm 5) 6) The freezing point of methane is -295∂F and the boiling point is -263∂F. The temperature of the surface of Titan, a moon of Saturn, is 93 K. If methane exists on Titan, it is A) a gas. B) a liquid. C) a plasma. D) a solid. 6) 7) Which of the following volumes is equal to 10 mL? A) 10 cm 3 B) 0.00010 kL C) 0.10 L D) 10 dm 3 7) 8) Convert 100 cm 3 to m 3 . A) 1 ˛ 10 0 m 3 B) 1 ˛ 10 -4 m 3 C) 1 ˛ 10 8 m 3 D) 1 ˛ 10 4 m 3 8) 9) Which of the following statements does not describe a physical property of chlorine? A) The color of chorine gas is green. B) Chlorine combines with sodium to form table salt. C) The density of chlorine gas at standard temperature and pressure is 3.17 g/L. D) The freezing point of chlorine is -101∂C. 9) 10) Which of the following statements does not describe a chemical property of oxygen? A) Iron will rust in the presence of oxygen. B) The pressure is caused by collision of oxygen molecules with the sides of a container. C) Oxygen combines with carbon to form carbon dioxide gas. D) When coal is burned in oxygen, the process is called combustion. 10) 11) A piece of metal ore weighs 8.25 g. When a student places it into a graduated cylinder containing water, the liquid level rises from 21.25 mL to 26.47 mL. What is the density of the ore? A) 3.21 g/mL B) 0.312 g/mL C) 0.633 g/mL D) 1.58 g/mL 11) 1
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12) Which of the following numbers has the greatest number of significant figures? A) 0.201 B) 418000 C) 6.02 ˛ 10 24 D) 0.5070 12) 13) How many of the following numbers contain 3 significant figures? 0.105 6.010 0.0100 8.00 ˛ 10 2 A) one B) two C) three D) four 13) 14) How many significant figures are there in the answer to the following problem? (8.881 ˛ 2.100) + 0.590 = ? A) one B) two C) three D) four 14) 15) How many significant figures are there in the answer for the following problem? 23.1 + 0.5588 + 17 = ? A) one B) two C) three D) four 15) 16) How many significant figures are there in the answer for the following problem? [(131.7 - 119) ˛ 1.05] 0.500 = ? A) one B) two C) three D) four 16) 17) To the correct number of significant figures, what is the temperature reading on the following Celsius thermometer? A) 21 e CB ) 2 2 e C C) 21.7 e C D) 21.70 e C 17) 2
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18) Liquids A, B, and C are insoluble in one another (i.e., they are immiscible). A, B, and C have densities of 0.998 g/cm 3 , 1.050 g/cm 3 , and 1.102 g/cm 3 , respectively. Which drawing represents the result of placing all three liquids into the same graduated cylinder?
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This note was uploaded on 02/12/2011 for the course CHEM 112 taught by Professor Sttaf during the Spring '03 term at Arkansas Pine Bluff.

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practicefinalmcmu - Exam Name MULTIPLE CHOICE Choose the...

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