What are the skeleton equations for

Dicarbon hexahydride gas + oxygen gas --> carbon dioxide gas + gaseous water

And

Solid barium and chlorine gas react to produce solid barium chloride

3 answers

C2H6(g) + O2(g) ==> CO2(g) + H2O(g)
You balance.

Ba(s) + Cl2(g) ==> BaCl2(s)
You balance.
1C2H6+1O2=2CO2+3H2O.
C2H6 + 5O2 - 2CO2 + 3H2O