<span>The
bent geometry of the water molecule gives a slight overall negative
charge to the oxygen side of the molecule and a slight overall positive
charge to the hydrogen side of the molecule. This slight separation of
charges gives the entire molecule an electrical polarity, so water
molecules are dipolar.</span>
The mass of the object can also be determined if the density and volume of an object are known.
I think it’s number 5 and number 9 hopes this helps.
