Answer:D and C sorry if im wrong
Explanation:
Bromine (Br) is the only element listed that is a diatomic element. I believe that Bromine is going to be your answer.
Answer:ABOUT 74 N
Explanation: TOOK THE TEST ON STUDY ISLAND :)
It would be CH2! you’re just simplifying C4H8, 4 can go into C4 1 time (so we just say C) and 4 can go into H8 2 times (H2)