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19) Use Lewis theory to determine the chemical formula for t [Copy URL]

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Post time 2013-3-24 22:38:48 |Show all posts

19) Use Lewis theory to determine the chemical formula for the compound formed between Ca and N.

A) Ca2N B) CaN C) Ca2N3 D) Ca3N2 E) CaN2


i know this may involve the charges of each element correct?

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Post time 2013-3-24 22:38:49 |Show all posts

Ca3N2

Ca = +2
N = -3

meaning

to get them to combine together, you need 2 N-s to make up for 3 Calciums (Since 2 doesnt go into 3 evenly.)

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