9. What is the process whereby fast-moving molecules in a a liquid escape from the free surface of the liquid?
a. Cohesion
c. condensation
b. Evaporation
d. precipitation

10. This bond is created by the weak attraction of a slightly positive to a hydrogen atom, to a slightly negative portion of another molecule.
a. chemical bond
c. covalent bond
b. hydrogen bond
d. ionic bond c. ionic bond ​