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Feliz [49]
3 years ago
14

Why is the sun up sometimes but not other times?

Chemistry
1 answer:
MatroZZZ [7]3 years ago
6 0

Answer: The Sun appears to move across the sky because the Earth rotates on its axis. ... When where you are is pointed toward the Sun, it is day. Then the Earth rotates you away from the Sun, and it is night.

Explanation:

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F2 = kq1*q2/(2r)² = kq1*q2/(4r²) = kq1*q2/(r²*4)  = F1/4

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Complexes containing metals with d10 electron configurations are typically colorless because ________. Complexes containing meta
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there is no d electron that can be promoted via the absorption of visible light

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The colours of transition metal compounds stem from d-d transition of electrons due to the presence of vacant d orbitals of appropriate energy to which electrons could be promoted.

For elements whose atoms have a d10 configuration, such vacant orbitals does not exist hence their compounds are not colored.

Sometimes, the colour of transition metal compounds stem from ligand to metal charge transfer(LMCT) for instance in KMnO4.

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