N2 + 3h2 → 2nh3 how many moles of hydrogen, h2, are needed to react with 2.0 moles of nitrogen, n2? round final answers to the tenth position, one place after the decimal. only report the numerical answer. my answer was 10.8

 The number of  moles  of H₂ that are needed  to react with 2.0  moles of N₂  is    6.0 moles

 calculation

N₂  +3H₂→   2NH₃

The moles of  H₂  is  calculated  using the mole ratio

That is from equation above  N₂:H₂  is 1 :3

therefore the moles of  H₂ = 2.0  moles  x (3/1) = 6.0 moles

answer: option (b) is the correct answer.

explanation:

a covalent bond is formed by sharing of electrons. whereas polarity arises due to difference in electronegativity of two atoms.

therefore, more is the electronegativity of an atom which combines with the titanium, more readily it will induce a partial positive and negative charge.

thus, out of the given options fluorine is most electronegative and has an incomplete octet. therefore, it will readily combine with titanium to share the electrons and complete its octet.