Which of the following molecules is/are planar in shape? I. Ethanoic acid II. 2-methylbutane III. 1-chloroethene IV. Methyl nirtrile Choices: A. 1 only B. 2 only C. 3 only D. 4 only E. 1 and 2 F. 1 and 3 G. 1 and 4 H. 2 and 3 I. 2 and 4 J. 3 and 4 K.1, 2, 3 L. 1, 2, 4 M. 2, 3, 4 N. 1, 2, 3, 4

hydrogen bond   polar covalent bond ionicbond       non-polar covalent bond peptide bond      glycosidic bond (you might want to look this one up)   ______  11. the bond holding several molecules of water together   ______  12. the bond holding the atoms of a salt molecule together   ______  13. the bond that holds the monomers of a protein together   ______  14. the bond holding glucose and fructose together in a sucrose molecule   ______  15. the bond holding the hydrogen and oxygen atoms together to form a water molecule

36. Consider the three molecular species CF, CF, and CF*. According to Molecular Orbital (MO) theory and using the MO diagram to the right, which of the three species has the longest bond and what is its magnetic property? a. CF has the longest bond and is diamagnetic. b. CF has the longest bond and is paramagnetic. c. CF has the longest bond and is paramagnetic. d. CF has the longest bond and is diamagnetic. e. CF has the longest bond and is paramagnetic. E 02p 2p 02p 2p 02s 02s

14. Which of the following should be insoluble in water? A. Mg(NO3)2 B. 1-butene C. Both A and B D. Neither A nor B 3

QUESTION 7 What type of bonding is present in NaCl? O A. polar covalent. O B. nonpolar covalent. O C. ionic. O D. metallic. QUESTION 8 Which one of the following is best associated with lipids? O A. amino acids O B. phosphate linkages O C. saccharides O D. fatty acids QUESTION 9 The statement, "In a chemical reaction, matter is neither created nor destroyed" is called O A. the Law of Conservation of Mass. O B. Dalton's Atomic Theory. O C. the Scientific Method. O D. the Law of Definite Proportions.

POST-LAB QUESTIONS 1. Determine the molecular geometries of the following molecules and ions: a. O3 b. NI, g. NH4 2- CIO2 co, с. d. 2- e. SO3 f. PCĻB. Draw the dot structure for the ionic compound MGF2. Can you make a model of this substance? Explain your answer. 2.

to undergo chemical changes. Which of the following is NOT a characteristic of benzene? Select one: O A. Benzene tends to react by substitution, but not by addition. O B. The benzene molecule has a very low energy content. OC. The benzene molecule is a planar ring with three C=C's alternating with three C-C's. O D. The benzene molecule is planar with six delocalized electrons. 1,3-Cyclopentadiene (pKa = 16) is a much stronger acid than cyclopentane (pka = 44). 0 US 0 Mar 16 6:25 8

How many H atoms are bonded to the indicated carbon atom in the following molecule? Select one: O A. 3 OB. 1 O C. 2 OD. 4