1.How does the surface tension of water compare with the surface tensions of most other liquids? (1 point)
It is lower. ***
It is about the same.
It is higher.
It is higher when a surfactant is added.
2. What is the shape of the water molecule? (1 point)
linear
tetrahedral
trigonal planer
bent ***
3.The bonds between adjacent water molecules are called ____. (1 point)
hydrogen bonds
ionic bonds ****
nonpolar covalent bonds
polar covalent bonds
4. The fact that ice is less dense than water is related to the fact that ____. (1 point)
the molecular structure of ice is much less orderly than that of water
the molecules of ice are held to each other by covalent bonding
ice has a molecular structure in which water molecules are arranged randomly
ice has a molecular structure that is an open framework held together by hydrogen bonds ***