If you were to explode two different balloons, one filled with H2 gas and another filled with a mixture of H2 and O2 gasses in a 2:1 volume ratio, which balloon would have a much larger fireball associated with it and why? Also, why is it necessary to start the reaction with a flame? Would the H2 balloon have the largest fireball because of its higher concentration of hydrogen gas? I was thinking that starting the reaction with a flame heats things up creating a faster movement of molecules. The faster movement of molecules means a higher velocity for collision creating the explosion. Is this correct? THANKYOU!!!