Exam1_CHE106_2009_VERSION_B

Exam1_CHE106_2009_VERSION_B - CHE 106 Section M029, Exam...

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CHE 106 Section M029, Exam #1, EXAM VERSION B Choose the one alternative that best completes the statement or answers the question. 1) Which of the following are chemical processes? 1. rusting of a nail 2. freezing of water 3. decomposition of water into hydrogen and oxygen gases 4. compression of oxygen gas A) 1, 2 B) 1, 4 C) 2, 3, 4 D) 1, 3, 4 E) 1, 3 2) For which of the following can the composition vary? A) heterogeneous mixture B) both homogeneous and heterogeneous mixtures C) pure substance D) homogeneous mixture E) element 3) Of the following, __________ contains the greatest number of electrons. A) P 2 + B) P 2 - C) P 3 + D) P 3 - E) P 4) The mass % of H in methane (CH 4 ) is __________. A) 4.032 B) 92.26 C) 74.87 D) 7.743 E) 25.13 1
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5) Solid aluminum and gaseous oxygen react in a combination reaction to produce aluminum oxide: 4Al (s) + 3O 2 (g) 2Al 2 O 3 (s) The maximum amount of Al 2 O 3 that can be produced from 2.5 g of Al and 2.5 g of O 2 is __________ g. A) 9.4 B) 7.4 C) 4.7 D) 5.3 E) 5.0 6) How many carbon atoms are there in 52.06 g of carbon dioxide? A) 3.134
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This note was uploaded on 02/09/2010 for the course CHE CHE 106 taught by Professor Korter during the Fall '09 term at Syracuse.

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Exam1_CHE106_2009_VERSION_B - CHE 106 Section M029, Exam...

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