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umka21 [38]
3 years ago
5

Which of the following will not have the same number of valence electrons?

Physics
1 answer:
nexus9112 [7]3 years ago
4 0
Carbon is the answer to the problem
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What is the energy (in evev) of a photon of visible light that has a wavelength of 500 nmnm?
lisabon 2012 [21]
<h3>Answer:</h3>
  • E≈2,5 eV
<h3>Explanation:</h3>

_______________

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\displaystyle \boldsymbol{E}=h\nu =h \frac{c}{\lambda} =4,14\cdot 10^{-15} \; eV\cdot s\cdot \; \frac{3\cdot 10^8\; m/s}{500\cdot 10^{-9}\; m} =2,484\;  eV\approx \boldsymbol{2,5\; eV}

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1 year ago
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6 0
2 years ago
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The vapor pressure of cyclohexane at 81.0°C is 101325 Pa.

Explanation:

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The value of atmospheric pressure is

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Vapor pressure :

Vapor pressure is equal to the atmospheric pressure.

Hence, The vapor pressure of cyclohexane at 81.0°C is 101325 Pa.

6 0
3 years ago
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