9. 1.9 mol hcl and 3.2 mol naoh react according to the equation
hci + naoh → nacl + h2o
calculate the grams of h2o formed.

34.23 grams H2O.

Explanation:

1 Mole of HCl produces  1 mole of water

So 1.9 moles producers 1.9 moles of water

= (2*1.008 + 16) * 1.9

= 18.016 * 1.9

= 34.23 grams H2O.

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.