science
posted by lauren .
i have to do balancing equation problems and i cant figure out this problem, help? i think you have to put numbers infront but i don't get it.
_H2+_O2<==>_H2O
(those 2's are subscripts)

You might try some of the links on h ow to do equation problems:
http://search.yahoo.com/search?fr=mcafee&p=how+to+do+balancing+equation+problems
Sra