I dont know if this is right but i think the answer is 10.8 kilometers
The correct answer for #8 is:
C. The original pattern of the light is distorted.
<span>molar mass of MgCl2
= 24.32 + 2 x (35.45) = 95.22 g</span><span>
<span>16.4g MgCl2 x (1 mol MgCl2/95.22
g MgCl2) = 0.172 mol MgCl2 </span>
</span>
<span>0.172 mol MgCl2 x (6.022 x 10^23/1 mol
MgCl2) = 10.36 x 10^22 atoms<span> </span></span>
The answer is rubidium -91 because it takes a shorter time of 58.4 seconds to become stable.
