Given the balanced equation representing a reaction at 101.3 kpa and 298 k:
n2(g) + 3h2(g) => 2nh3(g) + 91.8 kj
which statement is true about this reaction?
(1) it is exothermic and dh equals -91.8 kj.
(2) it is exothermic and dh equals +91.8 kj.
(3) it is endothermic and dh equals -91.8 kj.
(4) it is endothermic and dh equals +91.8 kj.

personal, she chose to do it.

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.