No. Science cannot go too far. Science is the method of pursuing knowledge, and the pursuit of knowledge. Knowledge in itself is not dangerous. It only becomes dangerous when people use it for immoral purposes, and THAT has nothing to do with the science that produced the knowledge.
Umm well have a good setting and reasoning for why you want chemistry between them. And for good chemistry give them a history and challenge there chemistry with different moods and obstacles. thats just my opinion i love writing.
Answer: part of a fish and an instrument for weighting