: A chemical process of decomposition involving the splitting of a bond by the addition of water.
We are given
n = 87.3 moles He
no = 52.0 moles
Po = 9.63 atm
Using the relationship between Pressure and number of moles
Po/no = P/n
Substituting
9.63 atm / 52.0 mol = P / 87.3 mol
Solve for P<span />
I am sorry I don't know, points are points though
B upper boundary of the zone of saturation, land beneath this line is saturated with water.