Polar and Nonpolar Molecules Worksheet X X

Name _________________________________

Period __________

Polar and Nonpolar Molecules Worksheet X X

Y or

X

Y

Y X Linear

X

Y

Y X

X X Trigonal Planar

X Bent

X X

Y

X

X X

Y

X

X

X

X

Pyramidal

Square Planar

X Tetrahedral

Determine if the molecules listed below are polar or nonpolar. To be polar, a molecule must:  have polar-covalent bonds AND  not be symmetrical. Note: see tables on pages 177 and 238 Oxygen gas, O2 Electronegativities: O ____ O ____ Difference ____ Polar or nonpolar bond? ___________ Electron dot diagram Structural formula Shape Polar or Nonpolar Molecule?

Nitrogen gas, N2 Electronegativities: N ____ N ____ Difference ____ Polar or nonpolar bond? ___________ Electron dot diagram Structural formula Shape Polar or Nonpolar Molecule?

H2CS Electronegativities: N ____ N ____ Difference ____ Polar or nonpolar bond? ___________ Electron dot diagram Structural formula Shape Polar or Nonpolar Molecule?

Ammonium ion, NH4+ Electronegativities: N ____ N ____ Difference ____ Polar or nonpolar bond? ___________ Electron dot diagram Structural formula Shape Polar or Nonpolar Molecule?

Water, H2O Electronegativities: H ____ O ____ Difference ____ Polar or nonpolar bond? ___________ Electron dot diagram Structural formula Shape Polar or Nonpolar Molecule?

Ammonia, NH3 Electronegativities: N ____ H ____ Difference ____ Polar or nonpolar bond? ___________ Electron dot diagram Structural formula Shape Polar or Nonpolar Molecule?

dichloromethane, CCl2H2 Electronegativities: C ____

H ____

Electron dot diagram

Structural formula

Difference ____

Polar or nonpolar bond? ___________

Shape

Polar or Nonpolar Molecule?

Carbon disulfide, CS2 Electronegativities: C ____ O ____ Difference ____ Polar or nonpolar bond? ___________ Electron dot diagram Structural formula Shape Polar or Nonpolar Molecule?

Boron trichloride, BCl3 Electronegativities: B ____ Cl ____ Difference ____ Polar or nonpolar bond? ___________ Electron dot diagram Structural formula Shape Polar or Nonpolar Molecule?

Sulfur dichloride, SCl2 Electronegativities: S ____ Electron dot diagram

Cl ____ Difference ____ Polar or nonpolar bond? ___________ Structural formula Shape Polar or Nonpolar Molecule?