Answer:
The radioactive isotopes within these brains typically record the ages of the grains-not the time when the sedimentary rock was formed, making it difficult to date using radiometric dating. The half-life of U-235 is 704 million years.
Explanation:
hope this helps but if i'm wrong then i'm sorry..
1 is c 2 is b 3 is 1 d 4 is a
Compound is a molecule made of atoms from different elements. Allcompounds are molecules, but not allmolecules are compounds. Hydrogen gas (H2) is a molecule, but not a compound because it is made of only one element.
Answer:
The answer is ![[\frac{LX_1}{46} + \frac{L(1-x)}{18}]\times0.454](https://tex.z-dn.net/?f=%5B%5Cfrac%7BLX_1%7D%7B46%7D%20%2B%20%5Cfrac%7BL%281-x%29%7D%7B18%7D%5D%5Ctimes0.454)
mol/hr
![[\frac{Vy_1}{46}+\frac{V(1-y)}{18}]\times0.454](https://tex.z-dn.net/?f=%5B%5Cfrac%7BVy_1%7D%7B46%7D%2B%5Cfrac%7BV%281-y%29%7D%7B18%7D%5D%5Ctimes0.454)
mol/hr
Explanation:
For flash distillation
F = V+L
Fz = Vy+Lx
Y = 
let, 
![y = \frac{Z}{F} -[ \frac{1}{F} -1]\times X](https://tex.z-dn.net/?f=y%20%3D%20%5Cfrac%7BZ%7D%7BF%7D%20-%5B%20%5Cfrac%7B1%7D%7BF%7D%20-1%5D%5Ctimes%20X)
Highlighted reading
F = 299; 
= 0.85 ; z = 0.36
y = 
= 0.423 + 0.15x ------------(i)
= -43.99713
+ 148.27274
- 195.46
+127.99
-43.3
+ 7.469
+ 0.02011
At equilibrium, = y
0.423+0.15 =
-43.99713+ 148.27274 - 195.46+127.99-43.3+ 7.319-0.403
F(x) for Newton's Law
Let 
= ![\frac{0-[{-0.403}]}{7.319}](https://tex.z-dn.net/?f=%5Cfrac%7B0-%5B%7B-0.403%7D%5D%7D%7B7.319%7D)
= 0.055
= 
= 
= 0.085
= 
= 0.095
= 
= 0.07
From This x and y are found from equation (i) and L and V are obtained from and F values
mol/hr
mol/hr
