Question
movs ( f^{prime} frac{14}{2}=16 )
max 9 thydog 2 .
( begin{aligned} text { W. mas } 2 & frac{211 times 100}{168} & 212.57 end{aligned} )
Sonlst is the ame

A gaseous compound of nitrogen and hydrogen contains 12.5% (by mass) of hydrogen. The density of the compound relative to hydrogen is 16. The molecular formula of the compound is: (1) NH2 (2) N3H (3) NH3 (4) N2H4
Solution
