Answer:
After 5 second 25% C-15 will remain.
Explanation:
Given data:
Half life of C-15 = 2.5 sec
Original amount = 100%
Sample remain after 5 sec = ?
Solution:
Number of half lives = T elapsed / half life
Number of half lives = 5 sec / 2.5 sec
Number of half lives = 2
At time zero = 100%
At first half life = 100%/2 = 50%
At second half life = 50%/2 = 25%
Thus after 5 second 25% C-15 will remain.
I believe the answer you are looking for is TRUE!
Forgive me if I am incorrect, hope I helped you out!
Have a great day.
The law of conservation of energy states that energy is never created or destroyed only converted.
Answer:
C. The rate of the reaction begins to decrease as the reactants are used.
Explanation:
a p 3 x
