Use the data from the Appendix II B in the back of your text, Chemistry: A Molecular Approach by Nivaldo Tro, to calculate the ΔHdissolution of potassium nitrate. KNO3(s) ↔ K+(aq) + NO3-(aq)
a) 35.6 KJ/mol
b) +459 KJ/mol
c) -35.6 KJ/mol
d) -459 KJ/mol

yes they ca   is ur ansswerrr

they are made of gases.

they have a spherical shape.

they make energy through fusion.

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.