The answer is A: breakdown of rocks through mechanical or chemical processes.
Answer:
Cools forming Igneous rock. Its weathered and eroded into sediments. The sediments are compacted and cemented forming sedimentary rock.
Explanation:
They must also possess a fixed crystalline structure (spatial arrangement of atoms and ions).
<h3>Structure of minerals</h3>
Minerals are those naturally occurring substances that are required for proper growth of living organisms.
It is found both on earth and in food substances such as calcium, magnesium, iron.
Minerals are known to have spatial arrangement of atoms and ions. Which means the ions and atoms are not randomly arranged.
Therefore, minerals are all naturally occurring solid substances with a definable chemical composition because it possess a fixed crystalline structure.
Learn more about minerals here:
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Answer:Mole, also spelled mol, in chemistry, a standard scientific unit for measuring large quantities of very small entities such as atoms, molecules, or other specified particles.
Explanation:
Answer:
1. 0.0637 moles of nitrogen.
2. The partial pressure of oxygen is 0.21 atm.
Explanation:
1. If we assume ideal behaviour, we can use the Law of ideal gases to find the moles of nitrogen, considering that air composition is mainly nitrogen (78%), oxygen (21%) and argon (1%):
2. Now, in order to find he partial pressure of oxygen we need to find the total moles of air, and then the moles of oxygen. Then, we use these results to determine the molar fraction of oxygen, to multiply it with total pressure and get the partial pressure of oxygen as follows:
As you see, the molar fraction and volume fraction are the same because of the assumption of ideal behaviour.
