Moles ule Hydrogen cyanide HCN Lewis Structure Molecule Hydrogen sulfide, H2S Le

Question

Moles ule Hydrogen cyanide HCN Lewis Structure Molecule Hydrogen sulfide, H2S Lewis Structure: Formaldehyde, HCHO Lewis Structure olecul hydrazine, N2H4 Lewis Structure: valence electrons bond pairs lone pairs sigma bonds pi bonds electron pair geometry molecular shape polar or nonpolar valence electrons bond pairs sigma bonds pi bonds electron pair geometry molecular shape polar or nonpolar valence electrons bond pairs lone pairs sigma bonds pi bonds electron pair geometry molecular shape polar or nonpolar valence electrons bond pairs lone pairs sigma bonds pi bonds electron pair geometry molecular shape polar or nonpolar

Explanation / Answer

For HCN

Question 1

For HCN

valence electrons:

H - 1

C = 4

N = 5

total = 1+4+5 = 10

bond pairs -->

2 for H-C bond

3 for C-N bond

total 5

lone pairs --> by definition are those electrons NOT bonded, they must be "pairs"

1 for Nitrogen (it has 5, -3 bonded, so 2 lone electrons, which is 1 pair)

For sigma bonds

sigma bonds --> 1 for H-C bond and 1 for C-N bond

PI bonds

pi bonds --> 0 for H-C and 2 for CN bond

electron pair geometry -->

this must be striaght or linear

molecualr shape

is also linear, since there are no more configurations for a AX2E1

Polarity?

therefore, the specie is polar, since CN is much more electronegativ ethan HC, which makes a dipole

"Please consider posting multiple questions in multiple set of Q&A. According to Chegg's Q&A Guidelines, we are only allowed to answer to one questions per Q&A."

Related Questions

Navigate

• Browse (All)
• Browse M
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.