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Chapter 2 Supplemental Instruction Iowa State University Leader: Carlie Course: Chem 177 Instructor: Greenbowe Date: 9/6/11 1.) Naturally occurring chlorine is 75.78% 35 Cl (atomic mass 34.969 amu) and 24.22% 37 Cl (atomic mass 36.966 amu). Calculate the atomic weight of chlorine. 2.) What are the seven diatomic molecules? 3.) Write the empirical formulas for the following compounds. a.) B 2 H 6 b.) Al 2 Br 6 c.) B 3 N 3 H 6 4.) Write the empirical formula for the compound formed by…What is the anion? Cation? a.) Na + and PO 4 3- b.) Fe 3+ and CO 3 2- c.) Zn 2+ and SO 4 2- 5.) An element that can be called a metalloid and conducts electricity like a semiconductor is
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Unformatted text preview: (a) Li (b) Ca (c) Cu (d) Zn (e) Ge 6.) One member of the group of alkaline earth elements is (a) Sodium (b) Magnesium (c) Aluminum (d) Silicon (e) Phosphorous Supplemental Instruction 1060 Hixson-Lied Student Success Center v 294-6624 v 7.) Complete the table by filling in the ionic compound formed by each pair of cations and anions Ion Na + Ca 2+ Fe 2+ Al 3+ O 2-Na 2 O NO 3-SO 4 2-AsO 4 3-...
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This note was uploaded on 10/02/2011 for the course CHEM 177 taught by Professor Greenbowe during the Spring '06 term at Iowa State.

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