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Sampe Exam --- CH.1,2&3

Sampe Exam --- CH.1,2&3 - CHEM 1201 Sect 09\>^ EXAM...

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CHEM 1201 Sect 09\>^^* Fall 2006 EXAM 1 Chapters 1, 2, & 3 Dr. Kolniak FORM1 IMPORTANT: Not following these directions may result in a less than desirable grade. On the scantron sheet fill in your name and id number in the boxes and bubble in the corresponding letters and numbers. If you have a question about the content of any of the problems or the answers provided, raise your hand. Make sure that every problem has an answer bubbled in on the scantron and DOUBLE check your answers on the scantron. Select the best answer (5 pts each). Useful information: Avogadro's number = 6.02 x 10 23 molecules/mol many molecules of C4H ]0 are in 1267.0 g of this compound ? 1.31 x 10 25 molecules b. 6.22 x 10 21 molecules c. 2.76 x 10 22 molecules d. 5.86 x 10 25 molecules e. 7.63 x 10 26 molecules 2. WrTi ^^com: ^^r r-\v T 2. i^iich one of the following is the correct formula resulting from a combination of the common ions from these elements: Sr and N? •T2- '?) a. SrN 3 b. Sr 3 N £|f c. SrN 2 fd. Sr 3 N 2 V=X e. Sr 2 N 3 3^Xtia «^ a nhos .at is the name of the following compound, a. phosphorus sulfide b. phosphorus (IV) sulfide (jo) tetraphosphorus trisulfide ~~}£-~ butylphosphorus proplysulfide . e. potassium sulfide
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