This equation is part of the decay series for thorium-232. Fill in the missing information. 212 Bi 4C + He Pb + e + He
A:
B:
C:
D:
DONE

the answer is c. nacl

answer: value for at is 1.61\times 10^{9}.

solution:

given:

since, hcn is an acid , as it gives hydronium ion in its solution.

for hcn

is a base which accepts of hydronium ions.

as the reaction has reversed the k' of the new reaction will be inverse of k of previous reaction.

since   is acting as a base so the value of will be :