Now assume you measure out exactly 2.0 mL of aluminum chloride into a third test tube
chloride are in the tube?
moles
0.0000020
0.0020
0.000020
0.00020

the answer is 99.

e^-kt = n/n0 = 0.79  

-kt = ln 0.79  

t = - ln 0.79/0.0001  

= 2357 years

step-by-step explanation:

the answer is d

for problems like this theres an app, its photomath that explains the problem and gives the answer hope i

the answer is a. 72. but i cant answer with less than 20 characters so here's some random text talking about it.