exam IV - Chem 211, Fall 2006 Practice Exam IV 1. Which of...

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1 Chem 211, Fall 2006 Practice Exam IV 1. Which of the following species violates the octet rule for electron distribution around the central atom? [A] SO 3 2- [B] SO 4 2- [C] S 2 O 3 2- [D] CO 2 [E] SF 4 2. The total number of valence electrons in the dihydrogen phosphate ion, H PO is 2 4 - , [A] 28. [B] 30. [C] 32. [D] 34. [E] 36. 3. How many valence electrons does a sulfate ion have? [A] 18 [B] 20 [C] 24 [D] 26 [E] 32 4. The structure BF 3 does not have a double bond because: [A] the lack of lone pair electrons on fluorine. [B] the high electronegativity of Boron. [C] the high electronegativity of fluorine. [D] the lack of d orbitals. [E] the lone pair of electrons on boron. 5. Chemical reactions between nonmetals and nonmetals primarily involve [A] interactions between protons. [B] interactions between protons, electrons, and neutrons. [C] sharing of electrons. [D] transfer of electrons. [E] interactions between protons and electrons. 6. The number of valence electrons in the nitrite ion is [A] 16. [B] 18. [C] 22. [D] 23. [E] 24. 7. The total number of valence electrons in carbonic acid, H 2 CO 3 , is [A] 23. [B] 24. [C] 25. [D] 28. [E] 32. 8. The number of lone pairs of electrons about the central Cl atom in the chlorate ion, ClO 3 - , is [A] 0. [B] 1. [C] 2. [D] 3. [E] 4.
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2 9. How many electrons does a stable strontium ION have? [A] 2
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exam IV - Chem 211, Fall 2006 Practice Exam IV 1. Which of...

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