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Can someone help me with these chemistry questions?

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  • Can someone help me with these chemistry questions?


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Answer #1 | 20/12 2013 06:06
Oxygen gains 2 electrons (2-), and hence has the same electron structure as neon. C4H9; C4H18 is divided by 2 to reach the empirical formula C4H9.
Positive: 61 %
Answer #2 | 20/12 2013 06:27
The ion has an electronic configuration of [Ne] and -2 charge. So, it is in 2nd period and the normal atom is the third last element.ie.Oxygen. Octane: C8H18=>Molecular formula C4H9=>Empirical formula
Positive: 55 %

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