What types of noncovalent bonds hold together the following solids? a. Table salt (NaCl), which contains Na+Na* and Cl-Cl¯ jons. b. Graphite (C), which consists of sheets of covalently bonded carbon atoms.

Question 11 of 20 Which statement describes why the viscosity of maple syrup is higher than that of orange juice? O A. The molecules that make up maple syrup are negative ions, while the molecules that make up orange juice are positive ions. O B. The molecules that make up maple syrup have a harder time moving past one another because they are smaller than the molecules that make up orange juice. C. The molecules that make up maple syrup are positive ions, while the molecules that make up orange juice are negative ions. D. The molecules that make up maple syrup have a harder time moving past one another because they are larger than the molecules that make up orange juice.

Which of the following statements is INCORRECT based on intermolecular forces of attraction? A.  Pentane (C5H12) has a low viscosity due to lack of dipole-dipole interactions. B. Liquids having strong intermolecular forces have low vapor pressures. C. The viscosity increases with increasing tempeature.

#9 Given the following liquids and their boiling points, which has the highest vapor pressure at its normal boiling point? A.   water, bp = 100°C B.   methanol, bp = 65°C C.   benzene, bp = 80°C D.   ethanol, bp = 78°C E.   The vapor pressure of each of the liquids at its normal boiling point would be the same.