Balance this equation please.

[Jessica]

H2O2 ----> H2O + O2 ^

I'm stuck at how to balance this.
give me hints.

[sosia]

Buff, Chemistry. It was so long ago ...
Can be 2(H2O2) -->2(H20) + 1(O2) ??
I think (but not sure) you should always find the odd one and make it double.
Here it is oxigen, you need 3 (1 in H20 + 2 in O2) So you must make the one double (because you have 02) so 2(H2O) + 1(O2)--> 2(H202)
but I ahve a wacky memory, it can be wrong.
saludos :D

[Jessica]

ok I will see if that's correct. I don't think it's necessary to put a 1 in front of O2. It'll still be O2

[NiaR]

First write the equation as you did,
H2O2 -> H2O + O2
Then notice that you need one more oxygen to get that diatomic O2.
Temporarily put 1/2 in front of O2.
Then multiply everything by 2 to get rid of that fraction.
The final balanced equation will look like this,
2H2O2 -> 2H2O + O2

HERE'S ALINK TO A TUTORIAL http://www.sky-web.net/science/balancing... (http://www.sky-web.net/science/balancing_chemical_equations.htm)

GOOD LUCK!!!!!!!

[Jessica]

thanks, that was what the answer was.