That's all the variables you have? It doesn't say anything about the volume of Barium Chloride or any of the products? I may be missing something as I just woke up, but I can't see what to do without something else.
Well, first of all, Chlorine and all halogens make one bond just like hydrogen. End of story (at least as far as you're concerned.) So you're not going to see a Cl double or triple bond.
Carbon makes 4 bonds. It doesn't like lone pairs (carbocations are the exceptions but are generally very...
m = mass of specified isotope
a = abundance of specified isotope as a part of 1.00 (100%
(m-32 x a-32) + (m-33 x a-33)... etc.
so (32.06 x .95) for sulfur-32 and so on