Question

How are hydrogen bonds different from covalent bonds?

Answer 1

Hydrogen bonds differ from covalent bonds. Hydrogen bonds form due to the positive charge of a molecule being attracted to the negative charge of a water molecule.

This is due to water being a polar substance. Polar substances have covalent bonds where the electrons are shared unequally. This creates a slight charge at each end of the molecule. This charge is what creates a hydrogen bond between a water molecule and another molecule. Hydrogen bonds are weaker than covalent bonds.

The solution is B. 

Answer 2

Hydrogen bongs are weaker bonds that form from molecules that have a slight positive charge on one side and a slight negative charge on the other.