If it reacted with oxygen then it would form water
An idea that explains something could be called a theory. Good scientific theories are falsifiable which means you could prove it to be false. You can never prove a theory to be true, you can only provide evidence that supports the theory.
You can prove you have made hydrogen gas because you will see bubbles rising from the soloution.You could also get a very tiny amount of the gas and hold a match to it.If it lights the it is most likely to be hydrogen gas +++ The bubbles only prove A gas is being evolved. They do not indicate WHICH gas.
if a burning splint is brought into contact with hydrogen gas a squeaky pop sound will be produced this would prove that hydrogen is present as hydrogen is extremely flamable.
To prove something you need proof, and proof is defined as ,"any factual evidence that helps to establish the truth of something", and evidence is an actual visual thing, and if you have NOTHING that is visual of and actual object, you cannot prove it, so no.
no
There are many reasons why you would want or need to flash a bio. You could do this to prove something.
A fact is an objective truth or reality that can be proven or verified. Evidence, on the other hand, is information or data that supports a claim or proposition. Facts are concrete and incontrovertible, while evidence is used to establish the truth of a statement or argument.
sorry, you cannot prove that something is true if it is not true!
Its hard to answer your question since you did not use commas. But... if the question is hydrogen, hydrogen fluoride, water or Ammonia then.. Hydrogen...is diatomic naturally so I'm not sure which you are referring too. It can not hydrogen bond with its self but it could act as a hydrogen donor and something like an ether could act as the proton acceptor. Then they could both participate in hydrogen bonding. Same answer as above goes from Ammonia. HF, can hydrogen bond with it's self and other molecules containing fluorine, Nitrogen or Oxygen. Same answer as above goes for water.
if it has mass
It means to try something out; to taste something; or to prove something.
You can use a lit splint and hold it over where you think the hydrogen is, and if you hear a loud squeaky pop sound it will prove the existence of hydrogen there. You can also test of hydrogen using a Hydrogen Leak Detector.