4Ag + 2H2S + O2 -> 2Ag2S + 2H20 i’m pretty sure that’s correct
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.
Explanation:
Vinegar like smell is given off by aspirin when we tend to heat it in boiling water. The main cause of this vinegar like smell is due to the formation of acetic acid and a phenolic acid upon heating of aspirin.
As a result, it gives a positive test when treated with ferric chloride, that is,
.
Na would form a 1+ ion losing its electron to the Cl to make a Cl- ion. Gives the molecule NaCl