J.R. S. answered 08/31/20
Ph.D. University Professor with 10+ years Tutoring Experience
2BrF3(g) ==> Br2(g) + 3F2(g) ... balanced equation
Use dimensional analysis:
25.4 g BrF3 x 1 mol BrF3/136.9 g x 1 mol Br2/2 mol BrF3 x 159.8 g Br2/mol = 14.8 g Br2 (3 sig. figs.)

J.R. S.
08/31/20
Raphael Louis T.
Thank you so much sir hope i really appreciate it it helps me to understand more about stoichiemetry. hope you answer my other questions it woul really mean alot. someday i wanto to be a chemist major like you sir.08/31/20