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mariarad [96]
3 years ago
12

Someone give me a hand plz​

Chemistry
1 answer:
alina1380 [7]3 years ago
5 0

Answer:

No, they did not live at the same time.

Explanation:

Hope this helps!

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An electron in a hydrogen atom relaxes to the n=4 level, emitting light of 74 THz.
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Delta E = Ef - Ei
E = energy , h = plank constant  , v = frequency
h= 6.626 * 10 ^-34 j*s  ,  T = 10 ^ 12  , v = 74 * 10 ^12 Hz  ,  Hz = s^-1 

E = ( 6.626 * 10^ -34 j*s) ( 74 * 10 ^ 12 s^ -1 )  =   4.90 * 10 ^ -20 J
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- 0.0400 = - 1/x ^2    =   -1 / - 0.0400    =   x^2
25   =  x^2 
     x = 5 




6 0
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Anybody know chemistry Grahams law ?
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There is two different types but i’ll just do both meanings just incase.

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hopes this helps..!
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Match the theory to the statement that best describes it. 1. big bang it's like an inflating and deflating balloon that never st
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1. big bang-the most accepted theory on the origin of the universe <span>
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Answer:

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