# 39.6: General Questions


1. Describe or sketch the different structures possible for $$\ce{C3H4}$$.  Do you expect these substances to have the same properties or different properties?

2. The structure of a water molecule causes it to be polar.  If the water molecule had the structure illustrated below, would it still be polar?  Explain.

1. The flat structure of the benzene (C6H6) molecule is partly responsible for this molecule being a cancer causing substance.  This molecule can slice into the DNA double helix and disrupt the cell’s ability to regulate itself.  Name a substance that you think may contain the benzene molecule.