That depends on the material. Different explosives burn at different rates.
fast
Depends on the nature of the explosion, the height of the explosion.
A very fast combustion. So, a very fast reaction.
Explosion is a type of fast reaction.
fast blast
Because explosions don't happen slowly
fast blast
it was the same speed as the other space shuttles till it had the explosion.
Oil can burn. If finely dispersed in air, it can burn real fast. So fast that it'll look like an explosion.
Chemical, an explosion is essentially extremely fast combustion which is a chemical reaction.
now there cant unless there was an impact but in this ocasion it was a spill not an impact there for no explosion. An explosion is only a fast burn that is confined until the expanding gases rupture open the container. If a fire developes around an aircraft, then it could heat up any fuel that is contained in another tank or trapped in the a/c and result in an explosion.
the explosion = die Explosion.