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Bumek [7]
3 years ago
12

What does soil have to do with rock

Chemistry
2 answers:
Lunna [17]3 years ago
8 0
Soil is made up of tiny bits of crushed rock and organic material.<span />
Ronch [10]3 years ago
6 0
Soil is made up of tiny bits and crushed rocks but other than that soil has nothing to do with rocks when people generally think about soil it has to do with farming agriculture etc. nothing  to do with rocks. One other thing mining has to do with soil and rocks so probably mining
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sertanlavr [38]

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3 0
2 years ago
How many moles are 4.20 * 10 ^ 25 atoms of Ca?
aleksandr82 [10.1K]

Answer:

~69.744 moles of Ca

Explanation:

Using Avogadro's constant , we know that:

1 mole = 6.022 x 10^23 atoms

S0, the number of moles in 4.20 x 10^25 atoms of Ca:

=(4.20 x 10^25 x 1 )/(6.022 x 10^23)

~69.744 moles of Ca

Q2:How many atoms are in 0.35 moles of oxygen?

1 mole = 6.022 x 10^23 atoms

S0, the number of atoms in 0.35 moles of  oxygen:

=[0.35 x (6.022 x 10^23)]

=2.1077 x 10^23 atoms of Oxygen

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4 0
2 years ago
When does the electron release the greatest amount of energry as it moves from one level to another?
gayaneshka [121]
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