Chlorine because it lacks one valence electron to fill it's outer shell
Answer:
4Hg+2O2=4HgO
four Mercury + four oxygen
Kinetic energy is 1/2m*v^2
They already halved the mass for you and they already squared the velocity for you. I’m unsure why you’re even asking this question. It’s simple multiplication at this point.
(27.5kg)*(4m^2/s^2) = 110 Jules
I dont know your question but that is true