SO GUYS I HAVE A QUESTION The graph below shows grain production in a village in Africa over a 40-year period.

Over the years, land used for grain production in this village has been subjected to aggressive farming practices such as over-watering and plowing. How have these activities most likely affected the land?
A.
The total volume of soil has increased.
B.
The fertility of the soil has increased.
C.
The rate of soil erosion has increased.
D.
The rate of soil formation has increased.

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.

you need to stop taking that class

c. orbital shape i hope this is correct