ReciQues-03-Key.pdf_, filename=_ReciQues-03-Key.pdf_, filename=_ReciQues-03-Key.pdf_, filename=_Re

ReciQues-03-Key.pdf_, filename=_ReciQues-03-Key.pdf_, filename=_ReciQues-03-Key.pdf_, filename=_Re

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Chem 109 Recitation Problems – Chapter 3 1 1. Na 2 SO 4 contains A. only ionic bonds. B. only covalent bonds. C. both ionic and covalent bonds. D. neither ionic nor covalent bonds. 2. Which of the following could be an empirical formula? A. C 3 H 8 B. C 2 H 6 O C. C 4 H 8 O 2 D. A and B E. B and C F. A and C G. All of the above can be molecular formulas. H. None of the above could be a molecular formula. 3. Which of the following could be a molecular formula? A. C 3 H 8 B. C 2 H 6 O C. C 4 H 8 O 2 D. None of the above could be a molecular formula. E. All of the above can be molecular formulas. 4. Which two of the following picture would best represent the Law of Multiple Proportions? (a) (b) (c) (d) a. (a) and (b) b. (c) and (d) c. (a) and (c) d. (b) and (d) e. (a) and (d) f. (b) and (c)
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Chem 109 Recitation Problems – Chapter 3 2 5. Balance the following reactions. NaN 3 (s) ! N 2 (g) + Na(s) 2NaN 3 (s) ! 3N 2 (g) + 2Na(s) Fe 2 O 3 (s) + C(s) ! Fe(s) + CO 2 (g) 2Fe 2 O 3 (s) + 3C(s)
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This note was uploaded on 04/12/2008 for the course CHEM 109 taught by Professor Malina during the Spring '08 term at UNL.

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ReciQues-03-Key.pdf_, filename=_ReciQues-03-Key.pdf_, filename=_ReciQues-03-Key.pdf_, filename=_Re

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