Draw the Lewis structure of HCN. Include lone pairs.
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Answer

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Step 1
: Determine the total number of valence electrons in the molecule.

Hydrogen(H)has1valenceelectron,carbon(C)has4,andnitrogen(N)has5.ThetotalnumberofvalenceelectronsinHCNistherefore:Total valence electrons=1+4+5=10 valence electronsHydrogen (H) has 1 valence electron, carbon (C) has 4, and nitrogen (N) has 5. The total number of valence electrons in HCN is therefore: \text{Total valence electrons} = 1 + 4 + 5 = 10 \ \text{valence electrons}

Step 2
: Draw a skeletal structure of the molecule.

The skeletal structure of HCN consists of a triple bond between carbon and nitrogen, with hydrogen attached to carbon: ```lua H - C - N ```

Final Answer

The Lewis structure of HCN is: ```lua H - C - N: : ``` with no formal charges.

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