Consider the reaction 4fes2 + 11o2 → 2fe2o3 + 8so2. if 8 moles of fes2 react with 15 moles of o2, what is the limiting reactant? fes2 fe2o3 o2 so2

The given reaction is:

4FeS2 + 11O2 → 2Fe2O3 + 8SO2

Reaction condition:

8 moles of FeS2

15 moles of O2

Moles of Fe2O3 formed under the given condition can be deduced as follows:

Based on reaction stoichiometry,

4 moles of FeS2 forms 2 moles of Fe2O3

Therefore, 8 moles of FeS2 would produce: 8*2/4 = 4 moles of Fe2O3

In addition:

11 moles of O2 forms 2 moles of Fe2O3

Therefore, 15 moles of O2 would produce: 15 * 2/11 = 2.73 moles of Fe2O3

Therefore, the limiting reagent is O2.

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.

im doing test rn im going with 2 but ill give answer if itss wrong,   : )