How to figure out the heat of a reaction of 2 RbF + Be(NO3)2 → 2 RbNO3 +BeF2

Ithink that the use of creativity in the sciences entails that one produce something out of nothing or from another thing. with this, i think that the he wrote down his results as four parts of the atomic theory is the manifestation of the  creativity of john dalton.

Ithink the answer is c

Answerrestate the main idea,essay or thesis, summarize the three subpoints of your essay, leave the reader with an interesting final impression;