Question

#1: Which of the following intermolecular forces plays a pivotal role in the unique properties of water?

A. dipole-dipole force

B. ion-dipole force

C. hydrogen bonding

D. dispersion force

**ym answer: C. hydrogen bonding

is that right?

Answer 1

#2: Which of the following elements does not form a monatomic ion?

A. oxygen

b. argon

C. chlorine

D. sodium

**ym answer: B. argon

not too sure, is that right? :)

Answer 2

#3: Which of these pairs of elements is most likely to be part of a polyatomic ion?

A. Cr and O

b. Li and Br

C. Mg and O

D. K and F

**my answer: A. Cr and O

again, not too sure on this one... is it right? or no? :O

Answer 3

all good so far (Y)

Answer 4

#4: QUESITON ATTACHEDD!! :)

answer choices:

A. It is a salt of monatomic nitrogen, hydrogen, sulfur, and oxygen ions.

B. It is a mixture of two monatomic nitrogen and hydrogen ions and one polyatomic sulfate ion.

C. It is a mixture of three polyatomic ammonium ions and a polyatomic sulfate ion.

d. It is a salt of two polyatomic ammonium ions and one polyatomic sulfate ion.

**ym answer; D

is that right?

Answer 5

wooo!! yay!!

one sec while i post the last one! =)

Answer 6

#5: On the basis of bonding, which of the following is true about sodium chloride when compared to sucrose?

A. Sodium chloride dissolves in water, but sucrose does not.

B. Sodium chloride has a lower melting point than sucrose.

C. Sodium chloride has a higher boiling point than sucrose.

D. Sodium chloride crystals are softer than sucrose crystals.

**my answer: C, it has a higher boiling point..

is that correct?

Answer 7

4 and 5 are right too

Answer 8

yay :) thanks!! :)