Hydrogen cyanide, HCN, is a highly poisonous compound that vaporizes slightly above room temperature. a) How many valence electrons does C have? b) How many valence electrons does H have? c) How many valence electrons does N have? d) How many total valence electrons does the HCN molecule have? e) Draw the Lewis structure for HCN that minimizes the formal charges on all atoms. f) How many electron domains are on the central atom? g) What is the molecular geometry of HCN? h) Is the molecule polar?

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