Answer:
variable: not consistent or having a fixed pattern; liable to change.
Explanation:
N2 + 3 H2 >> 2 NH3
moles NH3 = 11.50 g /17.0307 g/mol=0.6753
the ratio between H2 and NH3 is 3 : 2
moles H2 needed = 0.6753 x 3/2 =1.013
mass H2 = 1.013 mol x 2.106 g/mol=2.042 g
This would be the stratosphere. which is the second layer of the atmosphere.
It is bent and both are really handy
