If 3.50 mol of fe reacts with 3.00 mol of oxygen in the following reaction: 4 fe(s) + 3 o2(g) → 2 fe2o3(s) which of the following statements is correct?

Fe is the limiting reactant and 1.75 mol of Fe₂O₃ can be produced.

Explanation:

The equation for the reaction is;

4 Fe(s) + 3 O2(g) → 2 Fe2O3(s)

Therefore, 4 moles of Iron reacts with 3 moles of Oxygen to form 2 moles of iron (iii) oxide.

We are given;

3.5 moles of Fe and 3 moles of Oxygen gas

Thus, we will be correct to say that, Fe is the limiting reactant and 1.75 mol of Fe₂O₃ can be produced.

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.

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante