Another Question

[strykr]

Im kinda confused from the lesson I had today, is there a difference between Hydrogen and Hydrogen gas? And also, what are oxidants?

[CaptainPanic]

This might be in Homework, I can't do anything other than just answer the question...

 

Hydrogen is an element, and we have given it the letter H.

 

The hydrogen gas is a molecule that is made of 2 hydrogen atoms (two times the same element: hydrogen). That's why we write [ce] H2 [/ce].

 

However, hydrogen is also part of a water molecule (there are 2 hydrogen atoms and one oxygen atom in it: [ce] H2O [/ce]). In this case, we talk about "hydrogen" atoms, not "hydrogen gas". Hydrogen is actually part of many many chemicals and almost everything that lives is full of hydrogen (also your body!). None of that is hydrogen gas. All the hydrogen is bonded into something else (like a muscle, water or plastics).

 

So, "Hydrogen gas" is the pure hydrogen, whereas "hydrogen" can be part of something else too...

 

Please note that using the term "hydrogen" for the gas ([ce] H2 [/ce]) is not wrong.

 

Oxidants are described quite well on: http://en.wikipedia.org/wiki/Oxidation

I couldn't do it any better myself.

[thedarkshade]

Hydrogen gas is just a physical form of hydrogen.