Draw a Lewis structure and indicate the hybridization for each molecule that contains more than one interior atom. Draw the Lewis structure for C2H2 (whose skeletal structure is HCCH). Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons.

See figure 1

Explanation:

In this question, we have to remember that each carbon has 4 electrons and each hydrogen has 1 electron. Additionally, the structure proposed have to have 8 electrons for each atom (except hydrogen). With this in mind, we need to have a double bond between the carbons, because in this arrangement each carbon would have 8 electrons (octet rule).

See figure 1

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