Nothing, because you can have only one atom of it. Multiple will just form molecular hydrogen H2. That one hydrogen atom will aggressively rip of another hydrogen of a molecule of water for example, but it won’t be noticeable.
Nothing, because you can have only one atom of it. Multiple will just form molecular hydrogen H2. That one hydrogen atom will aggressively rip of another hydrogen of a molecule of water for example, but it won’t be noticeable.
Maybe it lubricates the knife so that it crushes fewer onion cells. That is the reason a sharper knife also works. Or the water dissolves part of the escaping gas. I think it might be both.
Too bad you can’t test your theory either. So stop pointing fingers.