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ChemMidTerm1a - ViewAttempt1of1 Title Started Submitted...

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Jump to Navigation Frame   Your location: Assessments  ›  View All Submissions  ›  View Attempt  View Attempt 1 of 1  Title: Midterm_Exam_1 Started: September 28, 2009 11:27 AM Submitted: September 28, 2009 12:26 PM Time spent: 00:58:23  Total score: 18/20 = 90%   Total score adjusted by 0.0  Maximum possible score: 20  1.
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  A mineral contains only a metal, M, and sulfur. If analysis indicates that a 3.23  g sample of the mineral contains 1.55 g of M, what mass of M (g) is contained  in 348 g of the mineral?  Do not enter units with your answer.    Student  Respons e Correct  Answer Answer: 167.0   167.0 Score: 1/1   
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Which of these best describes the set of elements below?  iodine (I), germanium, gallium    Stud ent  Resp onse Corr ect  Ans wer A.  main  grou metal noble  gas,  transi tion  metal    B.  transi tion  metal alkali  metal alkali ne  earth 
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  Suppose the element Z contains only two isotopes,  29 Z (atomic mass 28.93 u,  abundance 6.53%) and  31 Z (atomic mass 30.91 u). What would be the atomic  mass of Z that would appear in the periodic table? Do not enter units with your  answer.    Student  Respons e Correct  Answer Answer: 30.780   30.78 Score: 1/1   
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  What stable monatomic ions do the elements aluminum and nitrogen form?    Stud ent  Res pons e Corr ect  Ans wer A.  Al 3+  and  N 3+    B.  Al and  N 3-    C.  Al 3+  and  N 3+    D.  Al 3+  and  N 4-   
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  Give the systematic names for the formulas or the formulas for the names.
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