B The allusions recall specific locations and horrors of the Vietnam conflict. How many moles of H2O are produced when 12 moles of NH3 reacts with excess O2? 4 NH3 + 5 O2 → 4 NO + 6 H2O

Group of answer choices

18 moles H2O

12 moles H2O

6 moles H2O

9 moles H2O

Can someone me with questions 12 and 13 plz.

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

Which of the following statements about hybrid orbitals is or are true? choose all that apply. choose all that apply. under sp2 hybridization, the large lobes point to the vertices of an equilateral triangle. after an atom undergoes sp hybridization there is one unhybridized p orbital on the atom. the angle between the large lobes of sp3 hybrids is 109.5∘