Answer: 29.0 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) for decomposition of 80 % of reactant



The age of a suspected vintage wine that is 20 % as radioactive as a freshlybottled specimen is 29.0 years
Answer:
No, that sort of reaction do not form named compounds.
Explanation:
It is probably 6 just divide
c is the answer i odnt know the rest im only a sophmore
To identify a precipitation reaction and predict solubilities. ... solution of potassium dichromate to give a reddish precipitate of ... When aqueous solutions of silver nitrate and potassium dichromate are ...
Missing: AgNO2+