Titanium can be obtained from its oxide by the reaction shown here. When 42.0 g of TiO2 react with 11.5 gC, 17.8 gTi are obtained. What is the percent yield for the reaction? TiO2(s)+2C(s)→Ti(s)+2CO(g)

A) 77.6 %
B) 129 %
C) 70.7 %
D) 38.8 %

b

Explanation:

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.