Suppose you have a 100 mg sample of Au-191, which has a half-life of 3.4 hours. How much will remain after 10.2 hours? A 100 mg

B 50 mg

C 25 mg

D 12.5 mg

the answer is d. i took the test and its right

how did the organized protesting of children in birmingham, al impact segregation and racial discrimination in the u.s.? include key people and places during this event.

how did the organized protesting of children in birmingham, al impact segregation and racial discrimination in the u.s.? include key people and places during this event.

how did the organized protesting of children in birmingham, al impact segregation and racial discrimination in the u.s.? include key people and places during this event.

c: haven't lost any yet