Polar and Non-Polar molecules/ Hydrogen Bonding?

Why is SO2 & SO3 polar or nonpolar, etc. Help with chem?

• Well, I have a take home test and I need it finished by Monday. I really need help on these two questions. 1) Explain why SO2 is a polar molecule and SO3 is nonpolar. 2) Acetone, which is used in nail polish has the following structure (http://i8.tinypic.com/6ytz9tz.jpg). Predict if you would expect hydrogen bonding to occur in a solution of water and acetone between the water and acetone molecules. Explain your answer fully. Use a drawing to illustrate your answers. I would appreciate if you took the time to draw the drawing on paint and leave a link here or something. I realyl want a good grade x[.

• Answer:

  SO2 is a polar molecule because it's electron negativity difference is in between 0.5 to 1.9 SO3 is a nonpolar molecule because it's electron negativity difference is in between 0 to 0.4 Acetone,,,well CH3COCH3,,it has a hydrogen bond coz hydrogen is combined with oxygen,,,its stated in my book,,you can also know if it has H-bond if it combines with F,O,N It will surely have coz water is H2O and Acetone is CH3COCH3 therefore there will be a H-bond.. hope i helped you..=D