If a sample of C-14 initially contains 1.6 mmol of C-14, how many millimoles will be left after 2250 years

1.2 millimoles will be left after 2250 years

Explanation:

Expression for rate law for first order kinetics is given by:

where,

k = rate constant

t = age of sample

a = let initial amount of the reactant

a - x = amount left after decay process  

a) for completion of half life:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

b) Amount left after 2250 years

Thus 1.2 millimoles will be left after 2250 years

by cartels in other countries, shipped by air, mail, or land. i cant really see your answer choices : /

the answer is minerals.