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dmitriy555 [2]
4 years ago
11

Why does burning wood leaves an ash that is only a small fraction of the mass of the original wood.?

Chemistry
2 answers:
klemol [59]4 years ago
6 0
When wood burns, some of the mass is released as a gas. So if you were to combine the small fraction of ash with the gases released, you would get the mass of the original wood.
Natalija [7]4 years ago
6 0

Explanation:

Burning wood leaves an ash which is a small amount of original mass of wood because when we burn wood, large amount of wood is converted into carbon dioxide and water vapor. In complete combustion, there would be no ash remaining, because all the fuel have been consumed completely. When we sum up the mass of gasses released in burning and the ashes we get the original mass.

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I can't draw diagrams on this web site but I can do with numbers I think. So an electron is moved from n = 1 to n = 5. I'm assuming I've interpreted the problem correctly; if not you will need to make a correction. I'm assuming that you know the electron in the n = 1 state is the ground state so the 4th exited state moves it to the n = 5 level.

n = 5 4th excited state

n = 4 3rd excited state

n = 3 2nd excited state

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Explanation:

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3 years ago
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