[GreenAssailant]

I was watching a Youtube video by freelanceteach and he was talking about finding equivalencies in the periodic table [Link: http://www.youtube.com/watch?v=wa55WcLfqXU&feature=autoplay&list=PLA4679882327E5D89&index=21&playnext=5 ] I understood everything he said up to the point where he mentioned that:

1 mol H2O = 2 mol H
1 mol H2O = 1 mol O



Isn't it suppose to be 1 mol H2O = 1 mol O + 2 mol H, and not those two seperate equal statements?

Then how is:
1 molecule H2O = 1 atom O
1 molecule H2O = 2 atoms of H
?
I don't understand, because I thought that:
1 molecule H2O = 1 atom O + 2 atoms of H

[Borek]

Don't treat this equal sign too seriously. I guess they mean something like "molecule of water contains two atoms of hydrogen".

You know, it is like stating "I saw a man in a hat" - it doesn't mean he was naked and in hat only