HEY mate here your answer
CoBr2 . 6 h2o = Cobalt(II) Bromide Hexahydrate
Answer:
I believe it is 3 and 4. I really hope it is but i am positive :)
MgCl2 because it is the only option in which a metal appears with a nonmetal. In this case, the metal transfers electrons to the nonmental because the metal has a lower ionization energy.
<span>CH4 + 2O2 --> CO2 + 2H2O </span>