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AURORKA [14]
3 years ago
7

Atoms are incredibly small and we cannot see them, even with very powerful microscopes. If we cannot see them, then how do we kn

ow they are there?
Chemistry
1 answer:
Alekssandra [29.7K]3 years ago
3 0
Albert Einstein showed in one of his papers in 1905 that Brownian motion could be explained by assuming that matter is made up of tiny particles. His paper predicted how the motion should look like and also allowed for the calculation of the mass of a single molecule. Current evidence includes: 1. Individual ions (atoms with an electric charge) can be manipulated using electric and magnetic fields. 2. Elevation maps can now be made that show bumps caused by individual atoms.
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How many moles of water are in 1.23x10^18 water molecules
Harlamova29_29 [7]

By 1.23 x 1024 you mean 10 to the power of 24 molecules? If so all you need to do is divide the number of molecules you have by Avagadros number, 6.022 x 10^23. This will give you the mols of water, or the mols of anything, since there is always 6.022 x 10^23 molecules in 1 mol of substance.


1.23x10^24 atoms/6.022x10^23 atom/mol = 2.04 mol H20


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2 years ago
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The answer should be A.
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When a soda can is dropped, it should not be immediately opened. Why?
Kipish [7]
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7 0
3 years ago
Which of the following questions is outside the scope of science?
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A. How religion and philosophy different
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elena-s [515]

Answer:

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Explanation:

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3 years ago
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