I know how to balance equations, but for some reason I can't seem to get this problem. Can anyone help?

FeO3 + CO to Fe2S3 + NH4Br

4 answers

Thats weird. I just learned this today, but on side has sulfur and the other side does not.
wow, I just copied down two problems, heres the actual equation:
FeBr3 + (NH4)2S to Fe2S3 + NH4Br
I think its

2FeBr3 + 3(NH4)2S --->> Fe2S3 + 6NH4BR
that is it, thank you very much