Classify these molecules as polar or nonpolar?

1. CH3Cl

Answer 1

1. CH3Cl….POLAR
2. H2O…….POLAR
3. BCl3…….NONPOLAR (full symmetry, trigonal plane, there are three polar bonds, but bond moments cancel due to symmetry)
4. HF……….POLAR different electronegativities with F being partial – and H being partial +)
5. CCl4…….NONPOLAR (full symmetry, tetrahedral, four polar bonds, but bond moments cancel due to symmetry)
6. H2……….NONPOLAR (covalent bond between identical atoms)

answer 2

(Master of Physics Ch 15 HW)

Polar= H2S HBr CH3NH2
Nonpolar = CCl4BBr3H2

answer 3

Si-Cl is a polar bond Cl2 is a non-polar bond. If the difference in electronegativities is less than or equal to 1.7, it is mostly a polar bond, but if the difference is 0.3 or less, it is more often a nonpolar bond . If it is larger than it is usually an ionic bond.

answer 4

1. polar
2. fleece
3. no
4. fleece
5. no
6. no

Source(s): BRIAIAIANS

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