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schepotkina [342]
3 years ago
10

Which is an example of a chemical reaction?

Chemistry
1 answer:
allochka39001 [22]3 years ago
5 0
No it's B because of a chemical reaction between the air and iron
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How many atoms are in 3.20 moles of carbon
DIA [1.3K]

Answer:

19.264×10^{23} atoms are present in 3.2 moles of carbon.

Explanation:

It is known that one mole of each element is composed of Avagadro's number of atoms. This is same for all the elements in the periodic table.

So, as 1 mole of any element = Avagadro's number of atoms = 6.02×10^{23} atoms

It is as simple as understanding a dozen of anything is equal to 12 pieces of that object.

As here the moles of carbon is given as 3.20 moles, the number of atoms in this mole can be determined as below.

1 mole of carbon = 6.02 ×10^{23} atoms

Then, 3.20 moles of carbon = 3.20 × 6.02 ×10^{23} atoms

Thus, 19.264×10^{23} atoms are present in 3.2 moles of carbon.

6 0
3 years ago
What is the reason you can smell food cooking even when you're not in
Dmitry_Shevchenko [17]

Answer:

the answer should be A

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Intermolecular forces dipole differences london dispersion
loris [4]
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A bond created from the sharing of electrons between two atoms is a(an) ______ bond.
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How do forensic scientists determine the time of death? There are timely pieces of evidence that help scientists with this task.
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4. Empty small intestines = 12 hours

5. Bloating = 3-5 days

6. Decay

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