When dynamic equilibrium is reached between a liquid and its vapor __________. A

1. (D) the rates of vaporation and condensation are equal. 2. D Cl2 because both atoms cancel each other polarity. 3. (D) 4. (B) ionic 5.(D)

ID: 843488 • Letter: W

Question

When dynamic equilibrium is reached between a liquid and its vapor __________.

A) the number of liquid and vapor molecules are equal

B) vaporization and condensation cease

C) the volume of liquid and vapor molecules are equal

D) the rates of vaporation and condensation are equal.

Which substance is nonpolar?

A) NaCl

B) PCl3

C) HCl

D) Cl2

Which compound has a large permanent dipole?

A) methane

B) hydrogen

C) nitrogen

D) acetone

When electrons in a bond are shared unequally, the bond is __________.

A) polar covalent

B) ionic

C) nonpolar covalent

D) hydrogen bonding

To form hydrogen bonds molecules must contain __________.

A) an OH bond

B) an NH bond

C) an HF bond

D) at least one of the above mentioned bonds

1. (D) the rates of vaporation and condensation are equal.

2. D Cl2 because both atoms cancel each other polarity.

3. (D)

4. (B) ionic

5.(D)

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