Which chemical equation is balanced?

A. H2O----> H2+2O2
B. 2H2O---> 2H2+O2
C. 2H2O---> H2+2O2
D. H2O----> 2H2+2O2
Is the answer A?
Thanks

2 answers

Honestly, I don't think so.

For "H2O" and "H2", there is a coefficient of 2. "O2" has a coefficient of 1

This is "2H2O" and "2H2". And just "O2"

"2H2O = 2H2 + O2"

So, B is the answer.

I hope this helps! :)

P.S. I got the answer of 2H2O = 2H2 + O2 from a website, but I tried to explain it better off of that website. I am not sure I explained right, but I know B is correct.
It was right! Thx!