Question

what is the difference between nonpolar and polar bonds?

Answer 1

This is a question for a chemistry group, but I know a little chemistry so I'll try to answer you.

Polar bonds, also known as ionic bonds, occur because molecules have parts which carry an unequal distribution of + or - charge. For example, water
is shaped so that the front of the molecule has Hydrogen horns with a positive charge and the rear of the molecule has the negative oxygen molecule available for ionic bonding with another water molecule.

Non-polar "bonding" occurs when a solution is a mixture of polar molecules and non-polar molecules. For example oil and water. The polar molecules such as water will aggregate because of the different + and - charges on oxygen and hydrogen. Whereas the neutral charge on oil molecules will cause these molecules to aggregate, hence the seperation of the two, oil and water, when mixed.