/sci/ - Science & Math

This is retarded but aigth.
My ESL ass didn't understood what this said at all, but I'm trying to solve the Purple thing.
The Chemical Equation is Divided by half so [math]\Delta H[/math] should too.
Like this.
[math]2H\:_2+\:O_2\:\Rightarrow \:2H_2O\:\:\:\:\:\Delta H=-483.6kJ[/math]
[math]\frac{2H\:_2+\:O_2}{2}\:\Rightarrow \:\frac{2H_2O}{2}\:\:\:\:\:\Delta H=\frac{-483.6kJ}{2}[/math]
[math]H\:_2+\:\frac{1}{2}O_2\:\Rightarrow \:H_2O\:\:\:\:\:\Delta H=-241.8kJ[/math]
Am I right?