T-Mobile Wi-Fie 9:41 AM Practice Exam 3.pdf 12. Use the Lewis Structure to the r
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T-Mobile Wi-Fie 9:41 AM Practice Exam 3.pdf 12. Use the Lewis Structure to the right (lone pairs of electrons left of for CI simplicity) and what you know about molecular geometries to determine the bond angle(s). a. 72 b. 90 C. 109.5 d. 90" and 120 e. 90" and 180 13. Which of the following ionic materials would have the largest lattice energy? a. NaF b. NaCI C. KBr d. KCI e. CaCl 14. What is the effective nuclear charge for chlorine (CI)? b. 5 c. 7 e. 19 15. How many pi bonds are in the molecule to the right? b. 5 d. 14 0 16. Is the acetylsalicylic acid a polar or nonpolar molecule? a. Polar b. Nonpolar Acetylsalicylic acid also known as Aspirin. Lone pairs of electrons have been omitted for clarity. 17. Does any part of the molecule acetylsalicylic acid have resonance? a. Yes b. No E Open With PrintExplanation / Answer
12.
(D) 900 and 1200
In PCl5 there are two types of bonds, where two Cl atoms locate on linear axis and three Cl atoms locate at the corners of triangle. Hence the bond angle among the Cl atoms locate on corners of triangle is 1200 and the bond angle between the Cl on linear axis and Cl on corner of triangle is 900.
13.
(e) CaCl2. Higher is the charge higher is the lattice energy.
14.
15.
(b) Five pi bonds are there.
16.
(b) A polar compound
17.
(b) Yes
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