Answer
D
Explanation:
They take up usable forms of nitrogen found in soil
Hey there!
A half-life means after a certain amount of time, half of that substance will be gone/changed after that time.
If 50%, or half, of the element remains after 4000 years, that means the half life must be 4000 years.
Hope this helps!
There are 237. 5 g of Sulfur,S in 475 g of SO2?
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<h3>Calculation of grams of Sulfur</h3>
From the question, we can say that
- The molar mass of sulfur = 32 g/mol
- The molar mass of oxygen = 16 g/mol
Therefore,
The molar mass for SO2 = 32 + (16 × 2) g/mol = 64 g/mol
Now,
If 1 mole of SO2 contains 1 mole of S
Then 64 g of SO2, will contain 32g of S;
Such that
475 g of SO2 will give {
} = 237. 5 g of Sulfur.
Learn more about molar mass here :brainly.com/question/18291695
It can form a covalent bond with a hydrogen bond that has one valence electron to have eight valence electrons and become stable.