How many moles of o2 are required to generate 18 moles of h2o in the given reaction? 2c8h18 + 25o2 16co2 + 18h2o 2 moles 12 moles 16 moles 18 moles 25 moles i ask too many questions sorry.

25 mol

Explanation:

2C₈H₁₈ + 25O₂ ⟶ 16CO₂ + 18H₂O

The equation tells us that 25 mol O₂ generate 18 mol 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.

answer: they produce more slow than unicellular organisms.