At 25°c, the following heats of reaction are known: 2clf(g) + o2(g) → cl2o(g) + of2 ∆h°rxn = 167.4 kj 2clf3(g) + 2o2(g) → cl2o(g) + 3of2(g) ∆h°rxn = 341.4 kj 2f2(g) + o2(g) → 2of2(g) ∆h°rxn = −43.4 kj at the same temperature, use hess's law to calculate ∆h°rxn for the reaction: clf(g) + f2(g) → clf3(g)

- "the acute form of diverticulitis can manifest itself with one or more severe attacks of infection and inflammation.

the inflammation of diverticulitis can eventually result in a bowel obstruction, which may cause constipation, thin stools, diarrhea, abdominal swelling or bloating, and abdominal pain."

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.

c

explanation: