Density of an object is defined as mass per unit volume. mathematically we write that: d =m/v. rearrange this expression for: (a) m=? (b) v=?

D =M/V

a) D*V =(M/V)*V

DV = M or M=DV

b) D/1 =M/V

V=(1*M)/D = M/D

V=M/D

the increase of protons   hope this

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.