Answer:
B and D.
Explanation:
A reaction is correctly balanced when there is the same amount of each element in each side of the reaction.
The balanced reactions are:
[tex]S+3Cl_2\rightarrow SCl_6[/tex]Because in each side of the reaction there are: 1S and 6 Cl.
And:
[tex]2H_2+O_2\rightarrow2H_2O[/tex]Because in each side of the reaction there are: 4H and 2O.