I The answer is 42 cubic cm
<span>D) At point 4, thermal energy from warm air over the land is transferred upward toward cooler areas of the atmosphere.</span>
The best explanation would be that acid rain has dissolved the older statues over time.
Answer:
A
Explanation:
because on the first alphabet they've been specific of the weather partaking in the area
Answer:
43%
Explanation:
As the problem says that the antimony has only two isotopes, lets call each isotope the following:
x=abundance of isotope 121Sb
1-x=abundance of isotope 123Sb
And
Atomic weight of antimony = (isotopic mass of 121Sb*x)+(isotopic mass of 123Sb*(1-x))
Replacing values we have:
Solving for x:
it means that the abundance of the isotope 121Sb is 57% and the abundance of isotope 123Sb is 43%