they blew up
Hydrogen does not react with water
Hydrogen sulphide explodes when it is mixed with oxygen.
somthing smelly
Nothing.
it will be like ice.
dihydrogen oxide, hydronium ion, Hydroperoxyl and Hydrogen peroxide
Both are annihilated, and the energy equivalent of their masses is released.
Hydrogen is released in the atmosphere.
Hydrogen will be liberated.
water is left
A chemical reaction between oxygen and hydrogen occur.
The Hydrogen will burn fiercely with a lambent blue flame and water will be produced.