CHM101_SQ2_1 - d) an atom is mostly empty 3) 20 40 Ca has...

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General Chemistry 101-03 Quiz # 2A (10 points) Time: 10 min. Name:……………………………. I.D. Number:……………………. . 1) Which of the following pairs of compounds can be used to illustrate the law of multiple proportion? a) NH 3 and NH 4 Cl b) ZnO 2 and ZnCl 2 c) H 2 O and HCl d) NO and NO 2 2) Rutherford’s experimenmt was important because it showed that: a) radioactive elements give of alpha particles b) gold foil can be made to be only a few atoms thick c) the mass of the atom is uniformly distributed throughout the atom
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Unformatted text preview: d) an atom is mostly empty 3) 20 40 Ca has a) 20 protons, 20 neutrons, and 18 electrons b) 22 protons, 20 neutrons and 20 electrons c) 20 protons, 22 neutrons, and 18 electrons d) 20 protons, 20 neutrons and 20 electrons 4) Give a systematic name for each of the following compounds: a- CrO 3 b- Cd(NO 2 ) 2 c- (NH 4 ) 2 SO 3 d- N 2 O 5 e- HBrO 2 5)Write the formula for each of the following comounds: a-Potassium dihydrogen phosphate b- Iodous acid Good luck SAMPLE SAMPL...
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This note was uploaded on 04/10/2010 for the course CHM CHM101 taught by Professor Woljaong during the Fall '07 term at Multimedia University, Cyberjaya.

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