[seal308]

Hello
according to my textbook:
"In amines, one, two, or three of the N — H bonds in ammonia have been replaced with N — C bonds
The nitrogen atom in an amine, like its counterpart in ammonia, has a lone pair of electrons that can form a bond to a proton."
 
so my question is why are these 2 amines? there is no carbons in the formula.

H2NNH2
HONH2

Thanks!

[AWK]

Probably you have texbook on organic chemistry.

[Sadi Carnot]

The amine is the NH_(0-3).  It doesn't necessarily have to be bonded to carbon, though it usually is.