Its hybridization would be sp because Be only has 2 covalent bonds with Cl
Cu + S ---> CuS
by reaction 1 mol 1 mol
from the problem 0.25 mol 0.25 mol
0.25 mol Cu
I think that it is D because the higher the molecular mass, the higher it's boiling point. I hope that helped:) Bye!
I'm not sure but i would say C.storing the heat energy.
