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jek_recluse [69]
3 years ago
5

A second grade student approaches you and says that she learned that a lunar eclipse is the result of the Earth blocking the sun

's rays from reaching the moon, which makes it look like the moon "disappears" from the sky for a night. Explain to her why this is incorrect. ​
Chemistry
2 answers:
slamgirl [31]3 years ago
5 0

Answer:

This is incorrect because a Lunar Eclipse blocks the Sun's rays from reaching EARTH. So for a few seconds, maybe minutes, there is not direct light on earth. So she is incorrect.

Explanation:

I am pretty sure this is right. I hope this helps

Artemon [7]3 years ago
4 0

Answer:

nah she right

Explanation:

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Problem Page Question It takes to break a carbon-carbon single bond. Calculate the maximum wavelength of light for which a carbo
Marizza181 [45]

This is a incomplete question. The complete question is:

It takes 348 kJ/mol to break a carbon-carbon single bond. Calculate the maximum wavelength of light for which a carbon-carbon single bond could be broken by absorbing a single photon. Round your answer to correct number of significant digits

Answer: 344 nm

Explanation:

E=\frac{Nhc}{\lambda}

E= energy  = 348kJ= 348000 J  (1kJ=1000J)

N = avogadro's number = 6.023\times 10^{23}

h = Planck's constant = 6.626\times 10^{-34}Js


c = speed of light = 3\times 10^8ms^{-1}

348000=\frac{6.023\times 10^{23}\times 6.626\times 10^{-34}\times 3\times 10^8}{\lambda}

\lambda=\frac{6.023\times 10^{23}\times 6.626\times 10^{-34}\times 3\times 10^8}{348000}

\lambda=3.44\times 10^{-7}m=344nm    1nm=10^{-9}m

Thus the maximum wavelength of light for which a carbon-carbon single bond could be broken by absorbing a single photon is 344 nm

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Answer:

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