Answer:
Explanation:
As can be seen in the Figure in a face-centered cubic unit cell you have:
- Six halves of atoms
- Eight 1/8 of atom (1 in each corner)
In total:
Now, each side of the cell is 234 picometers (2.34e-8 cm) long
Atoms per cm3:
Expressing in mass:
Answer:
the sewcond one bacteria are living organisms, but viruses are not
Explanation:
Answer : The time taken by the reaction is 
Explanation :
The expression used for second order kinetics is:
![kt=\frac{1}{[A_t]}-\frac{1}{[A_o]}](https://tex.z-dn.net/?f=kt%3D%5Cfrac%7B1%7D%7B%5BA_t%5D%7D-%5Cfrac%7B1%7D%7B%5BA_o%5D%7D)
where,
k = rate constant = 
t = time = ?
![[A_t]](https://tex.z-dn.net/?f=%5BA_t%5D)
= final concentration = 0.40 M
![[A_o]](https://tex.z-dn.net/?f=%5BA_o%5D)
= initial concentration = 2.16 M
Now put all the given values in the above expression, we get:
Therefore, the time taken by the reaction is
Answer is: <span>B. taking photographs.
</span>Fire scene investigation begins when investigator approaches the location and start observing the scene from a distance and begin photographing. That must be done first because crowd start gathering. Once the fire scene is secured, w<span>intesses can be interviewed.</span>
