posted by shay on .
What two conditions necessary for molecules to be polar? Her's my answer pls check.
First, at least one covalent bond in the molecule has to be a polar covalent bond. For a bond to be polar, there must be a difference in the electronegativities of the two atoms that are bonded together. The second condition is that the molecule cannot be perfectly symmetrical.
Perfect answer. Go to the head of the class.