Answer:
The study of reaction rates is called Chemical Kinetics.
Explanation:
Hope this helps :)
I believe it is a physical change.
Answer:
many atoms would it take to make the distance 6.20 cm from end to end.
Explanation:
Diameter of the helium atom = ![d=1.40\times 10^2 pm](https://tex.z-dn.net/?f=d%3D1.40%5Ctimes%2010%5E2%20pm)
Let the number of atoms required to make the distance 6.20 cm be n.
![d\times n= 6.20 cm =6.20\times 10^{10} pm](https://tex.z-dn.net/?f=d%5Ctimes%20n%3D%206.20%20cm%20%3D6.20%5Ctimes%2010%5E%7B10%7D%20pm)
![1.40\times 10^2 pm\times n=6.20\times 10^{10} pm](https://tex.z-dn.net/?f=1.40%5Ctimes%2010%5E2%20pm%5Ctimes%20n%3D6.20%5Ctimes%2010%5E%7B10%7D%20pm)
![n=\frac{6.20\times 10^{10} pm}{1.40\times 10^2 }=4.4285\times 10^8](https://tex.z-dn.net/?f=n%3D%5Cfrac%7B6.20%5Ctimes%2010%5E%7B10%7D%20pm%7D%7B1.40%5Ctimes%2010%5E2%20%7D%3D4.4285%5Ctimes%2010%5E8%20)
many atoms would it take to make the distance 6.20 cm from end to end.
Answer:
C). Electrostatic attractions between + and - charged ions.
Explanation:
They're electrostatic attractions because it is electrovalent bonding.
From the calculation, the binding energy of the oxygen atom is 1.98 * 10^11 J
<h3>What is the binding energy?</h3>
The term binding energy has to do with the energy that must be supplied to the nucleus of an atom for the nucleus of the atoms to be bonded together.
We must note that;
E = mc^2
E = 2.20 × 10 -28 kg * ( 3 * 10^8m/s)^2 = 1.98 * 10^11 J
Learn more about binding energy:brainly.com/question/10095561
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