Answer
9.6 x $10^{-8}$ mm is the distance between any atom hydrogen and oxygen in water molecule .
Work Step by Step
We are required to convert 0.96 Å to mm.
We know that 1 Å =$10^{-10}$ m.
1 m =$10^{3}$ mm
So we can write:
0.96 Å = 0.96 x $10^{-10}$ m
0.96 Å = 0.96 x $10^{-10}$ x $10^{3}$ mm
0.96 Å = 0.96 x $10^{-7}$ mm
0.96 Å = 9.6 x $10^{-8}$ mm
So the distance between any atom hydrogen and oxygen is 9.6 x $10^{-8}$ mm .