Polar Molecules Practice Task 4

A molecule with a positive end and a negative end is called a ____

Dipole

A polar molecule with the two electrically charged regions on either end is called a _____

Dipole

What can be used to measure molecular polarity?

Electric field

(True or false) All tetrahedral molecules are nonpolar

False

(True or false) Dipole-dipole forces occur between neutral, nonpolar molecules. The forces exist due to the "random motion of electrons".

False

(True or false) Polar molecules repel each other

False

Which of the following shows dipole-dipole interactions

Hydrogen chloride, ammonia, chloroform

The strength of the dipole-dipole interactions ____ with the number of electrons in a molecule

Increases

Which formula represents a polar molecule containing polar covalent bonds?

NH3

In a polar molecule, the partial positive charge on one molecule is attracted toward the partial ____ charge on a nearby molecule

Negative

A water molecule is polar because

Of the difference in electronegativity between the oxygen and hydrogens

A ____ bond is a dipole

Polar

A ____ molecule has dipoles that do not cancel one another out

Polar

Dipole-dipole force is present in ____

Polar-polar molecules

(True or false) All trigonal pyramidal and bent molecules are polar

True

(True or false) The bonds in a carbon dioxide molecule are polar while the molecule is non-polar

True

(True or false) The molecules having dipole moments are called polar molecules

True