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zhuklara [117]
3 years ago
8

What are minerals? What kinds of minerals are considered gems? (Site 1)

Chemistry
2 answers:
eimsori [14]3 years ago
5 0
For your second question its Diamonds,Rubys, Emeralds.
And for your first question its :Minerals are natural: These substances that form without any human help.

Minerals are solid: They don't droop or melt or evaporate.

Minerals are inorganic: They aren't carbon compounds like those found in living things.

Minerals are crystalline: They have a distinct recipe and arrangement of atoms.
inn [45]3 years ago
5 0
Minerals are solid inorganic substances of natural occurrences.
Examples of minerals that would be considered gems are: Alexandrite, Diamond, Lapis, Paraiba, Ruby, and Topaz. There's 80, those are just a few.

I hope this helps! :>
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Answer:

<h2>0.36 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

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L is the Avogadro's constant which is

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From the question we have

n =  \frac{2.17 \times  {10}^{23} }{6.02 \times  {10}^{23} }  =  \frac{2.17}{6.02}  \\  = 0.360465...

We have the final answer as

<h3>0.36 moles</h3>

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2 years ago
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<h3>What are models?</h3>

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Learn more about molecular models:brainly.com/question/156574

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2 years ago
Why do we need a “mole”?
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Wdym mole like the animal or something else ?
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