b) water molecule has a bent shape
In the context of chemical bonds, polarity refers to the separation of charges i.e. the distribution of electrons between the atoms constituting the bond. This charge separation creates a dipole.
Similarly polar molecules are made of polar bonds in which the bond dipoles add up such that there is a net dipole moment.
In water(H2O), the central O atom is more electronegative than H which creates a dipole directed towards the O atom. In addition, due bent shape of H2O the dipole moments add up (instead of cancelling out if it were linear) resulting in a net dipole which makes water polar.
answer; i believe the correct answer is (solid gold);
a) water molecule has a linear shape
b) water molecul...