If another planet crashed into Earth, would the ocean go into space

Assuming that the heat of the impact has no implication on the water and that the aftermath of whats left over isnt significant enough to produce gravity to maintain the ocean on it, then I suppose the ocean would instantly freeze due to the temperature of the surrounding space and would float around like a glacier, which isnt uncommon in space anyway.

It depends I guess (I am NO expert!)...

I would suspect that either the planet (or comet - surely more likely!) would not be small enough to destroy the earth (although it may wipe us little humans out!) in which case I suspect gravity would keep everything on the planet in place!

OR, if it really was a big planet, perhaps we would explode (not sure if it would be called a supernova though!) in which case, maybe the water would evaporate due to the intense heat? - That would be one heck of a steam bath :D

I don't think it would splash that high. There isn't any other gravitational pull that would take it, and it would still be close enough to return to the Earth. I didn't do any math, so that's nothing definitive. Even though it wouldn't matter to anyone by then, that's a good concept question.

You worry about the oceans if we get a direct impact from another planet? What about, oh I don't know, humanity?

The ocean IS in space.

Nah

no it stays where ever it is