Question

Water molecules are polar molecules. What is meant by the term polar molecule?

a molecule that has an overall positive charge on one end and an overall negative charge on the other end
a molecule that has no charge on one end and either an overall negative or positive charge on the other end
a molecule that has an overall negative charge on one end, as well as an overall negative charge on the other end
a molecule that has an overall positive charge on one end, as well as an overall positive charge on the other end

Answer 1

this is mathematics you'll have better luck in biology

Answer 2

This is actually a chemistry question haha.
But polar molecules have a positive and negative charged end because of electronegativity.
:)