Not sure but i think living things adapt to their environment.
Adaptations are traits giving an organism an advantage in a certain environment. And variations of individuals is important for a healthy species. So i think adaptation might be the right answer because animal will try to adapt the certain environment. I hope this answer will help you.
The balanced reaction:
<span>4Na + O2 = 2Na2O
We use the relation of the substances and the amount of sodium to determine the theoretical yield of the reaction. This yield is the amount produced if all the reactant is consumed.
2.55 mol Na (2 mol Na2O / 4 mol Na) ( 61.98 g / 1 mol ) = 79.02 g Na2O
Percent yield = 75.0 / 79.02 x 100 = 94.91%</span>
Answer:
both magnets have the same charge...
Explanation:
Answer:
I = 0.0931 A/cm^2 or 93.1 mA/cm^2
Explanation:
The computation of the corresponding corrosion is shown below:
As we know that
The mathematical form is
![m=\frac{Q}{F} \frac{M}{z}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7BQ%7D%7BF%7D%20%5Cfrac%7BM%7D%7Bz%7D)
where,
m = substance mass
Q= total electric charge
F= Faradays constant i.e. = 96,500 C/mol
M = Substance molar mass
z = number of electrons transferred
Now
Q = It
where
I = current
And t = time
![m=\frac{Q}{F} \frac{M}{z}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7BQ%7D%7BF%7D%20%5Cfrac%7BM%7D%7Bz%7D)
So,
![I = \frac{mFz}{tM}](https://tex.z-dn.net/?f=I%20%3D%20%5Cfrac%7BmFz%7D%7BtM%7D)
Now it is mentioned that
z=3, M=26.98 g/mol, m=0.25 g/cm2
So,
![I= \frac{0.25 g/cm^2 \times 96,500 C/mol \times 3}{((8\times60\times60 s)} \times 26.98 g/mol)](https://tex.z-dn.net/?f=I%3D%20%5Cfrac%7B0.25%20g%2Fcm%5E2%20%5Ctimes%2096%2C500%20C%2Fmol%20%5Ctimes%203%7D%7B%28%288%5Ctimes60%5Ctimes60%20s%29%7D%20%5Ctimes%20%2026.98%20g%2Fmol%29)
Hence,
I = 0.0931 A/cm^2 or 93.1 mA/cm^2