2072011practexam

2072011practexam - General Chemistry I R Lpez de la Vega...

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General Chemistry I First Examination R. López de la Vega 02/01/06 Name ______________________________ Form III - Page 2 Page No. 2 Choose the best answer from the ones provided. 1. Which group of elements reacs violently with water? a) halogens b) noble gases c) alkaline earth metals d) alkali metals e) Choose this one if none of the above are correct. 2. Which one of the following is a poor conductor of electricity? a) copper b) fluorine c) iron d) lead e) Choose this one if none of the above are correct. 3. An astronaut uses a laboratory balance and weighs an object on earth and again on the moon. Which statement below about the weight and mass of the object is TRUE? a) The mass and weight will be identical on the earth and on the moon. b) The mass will be the same on earth and on the moon but the weight will be less on the moon. c) The weight will be the same on earth and moon but the mass will be less on the moon. d) Both the mass and weight will be different on earth and moon. e) Choose this one if none of the above are correct. 4. The diameter of an atom is approximately 1X10 -10 meters. What is the diameter in millimeters? a) 1 X 10 -16 mm b) 1 X 10 -13 mm c) 1 X 10 -7 mm d) 1 X 10 -4 mm e) Choose this one if none of the above are correct.
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General Chemistry I First Examination R. López de la Vega 02/01/06 Name ______________________________ Form III - Page 3 Page No. 3 5. Which of the following statements about temperature scales is false? a) The boiling point of water in the Fahrenheit scale is 212 degrees. b)
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This note was uploaded on 02/17/2011 for the course CHM 1045 taught by Professor Jeffreyjoens during the Spring '08 term at FIU.

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2072011practexam - General Chemistry I R Lpez de la Vega...

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