2072011practexamother

2072011practexamother - General Chemistry I R Lpez de la...

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General Chemistry I First Examination R. López de la Vega 02/07/11 Name ______________________________ Form I - Page 2 Page No. 2 Choose the best answer from the ones provided. 1. Which of the following choices is composed of elements which belong to the same group in the periodic table? a) Li, Na, He b) Na, Mg, S c) Ni, Pt, Gd d) Ge, Sn, C e) Choose this one if none of the above are correct. 2. Which of the following elements is a good conductor of heat and electricity? a) carbon – C b) chlorine-Cl c) neon-Ne d) zinc-Zn e) Choose this one if none of the above are correct. 3. Which of the following elements is classified as a semi-metal or metalloid? a) calcium-Ca b) germanium-Ge c) fluorine-F d) uranium-U e) Choose this one if none of the above are correct. 4. The average distance between nitrogen and oxygen atoms is 115 pm in a compound called nitric oxide. What is this distance in centimeters? (n.b. pico = 10 -12 ) a) 1.15X 10 -9 cm b) 1.15 X 10 -8 cm c) 1.15 X 10 12 cm d) 1.15 X 10 16 cm e) Choose this one if none of the above are correct. 5. Which of the following does not describe a physical property of Cl 2 ? a) Chlorine combines with sodium to form table salt. b) The color of chlorine gas is green c) The density of chlorine gas at standard temperature and pressure is 3.17 g/L d) The freezing point of chlorine is -1-01 o C 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 02/07/11 Name ______________________________ Form I - Page 3 Page No. 3 6. Which of the following is an exact number? a)
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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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2072011practexamother - General Chemistry I R Lpez de la...

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