What two things determine whether a molecule is polar? Check all that apply.
A. If there is an anion and a cation
B. If the molecule is easily ionized
C. If the bonds are polar
D. The molecular shape

If a balloon is taken outside on a very cold day, what will occur?

Which component of the earth’s atmosphere is decreased due to photosynthesis?

When can a theory be modified if a new type of technology allows for new observations that raise new questions? a-immediately, while the questions about the theory are being asked b-after new hypotheses related to the theory are tested in experiments c-only after the new observations disprove all parts of the theory d-while scientists begin to think about how the theory could improve