How can calcium carbide can be CaC2?

Chemistry
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Calcium is +2

Carbon is -4

How can calcium carbide can be CaC2?

Oct 3rd, 2015

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 You are thinking of ionic bonds where one element (like calcium ) loses electrons while another (say chlorine) gains it. This is the extreme. There are also covalent bonding where sharing of electrons takes place (although the sharing may not be equal). Here, as with most carbon compounds, there is sharing between calcium and carbon. There are two single bonds that calcium makes with each carbon atom and two double bonds that the two carbons make with each other, completing the octet.

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Oct 3rd, 2015

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