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Answer on Inorganic Chemistry Question for adrienne

Question #36794
16. If a sample of a compound of carbon and oxygen contains 3.00g of carbon and 8.00g of oxygen, what is the mass percent of carbon in the compound?

A. 27.3%
B. 25.0%
C. 37.5%
D. 3.67%
E. 2.67%

18. When the Danish physicist Niels Bohr proposed that the energies of electrons inside atoms were quantized,

A. he meant that the electron could have only particular, allowed energies
B. he had a complete explanation for this effect.
C. it contradicted the work of the German physicist Max Planck.
D. it helped explain classical physics.
E. it confirmed the work of the British scientist Rutherford.

19. How many electrons can an n = 6 orbit or shell theoretically hold?

A. 72
B. 8
C. 18
D. 32
E. 50
Detailed explanation: NO
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