Which is true about what models allow us to do to the system being studied? a) increase the amount of waste produced. b) decrease what we learn about a system. c) decrease the amount a system is studied. eliminate d) increase the size of a very small system, allowing easier understanding of what is occurring.

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h,o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.