The awnser to your question would be B
Answer:
C2H4
Explanation:
This compound has no oxygen atoms at all.
Answer :The element cobalt is characterzied by the presence of 27 massive, positively charged particles, 27 protons , in its nucleus. Since it is 58Co , there are 31 neutrons , 31 massive, neutrally charged particles in its nucleus.
Explanation:
I'm not 100% sure on this one, but I think it's C.
Sorry, I'm not really good with Chemistry.
Hope this helps :)
I believe it is the third option :)
