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CHEM 120 TEST 3 STUDY GUIDE ANSWER KEY: Ch 7 & 8 1.Draw the best Lewis Dot Structure for each of the following species. a) BeF2 b) BCl3 c) CCl4 d) PBr5 e) SI6 3. Draw the best Lewis Dot Structures for each of the following species. a) BH2 – b) NI3 c) ClF4 + d) SF5 A) B) C) D) E) 4. Predict whether each molecule would be polar or non polar, assuming all the bonds are polar: A) Polar B) Nonpolar C) Nonpolar D) Polar E) Polar

CHEM 120 TEST 3 STUDY GUIDE: Ch 7 & 8 1.Draw the best Lewis Dot Structure for each of the following species. a) BeF2 b) BCl3 c) CCl4 d) PBr5 e) SI6 3. Draw the best Lewis Dot Structures for each of the following species. a) BH2 – b) NI3 c) ClF4 + d) SF5 A) B) C) D) E) 4. Predict whether each molecule would be polar or non polar, assuming all the bonds are polar: A) B) C) D) E)

CHEM 120 TEST #4 STUDY GUIDE: 1. Answer the following True or False questions: a) The angle between the large lobes of sp3 hybrids are 109.5 degrees b) Under sp2 hybridization, the large lobes point to vertices of an equilateral triangle c) There are 4 electrons in the pi bond d) Deconstructive bonding between two 1s orbitals forms an anti-bonding sigma orbital e) All C atoms in compounds are sp3 hybridized f) The reason carbon atoms can form four bonds rather than only two is explaine...

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