Question

#1: Which of the following is likely to be a polar compound?

A. CHCl3

B. CCl4

C. CO2

D. CH4

**my answer: A.

not too sure tho.. is that right?

Answer 1

here are the answer choices for #1, top to bottom, A,B,C,D :) just in case :)

Answer 2

yep, because it's not symmetrical

Answer 3

awesome!!!! :)

one sec while i post #2!! :D

Answer 4

#2: What is the major difference between an ion and a dipole?

A. An ion is permanently charged, but a dipole is not.

B. An ion engages in weaker bonds than a dipole.

C. An ion can only interact with other ions, while a dipole can interact with many molecules.

d. An ion is either positively or negatively charged, but a dipole has both charges.

**my answer: D

is that right??

Answer 5

yesss

Answer 6

#3: Between which pairs of molecules would you expect to find hydrogen bonds?

A. CH4 and NH3

B. H2O and NH3

c. CH3Cl and HI

D. CH4 and H2O

**my answer: B

not too sure tho... idk is that right??

and yayyyy !! haha thanks :)

Answer 7

yesss

Answer 8

#4: What is the molecular shape of boron trifluoride?
(see attached image!!)

A. tetrahedron

B. linear

C. bent triatomic

D. pyramidal

**my answer: D. pyramidal

is it pyramidal this time?? haha :P

Answer 9

yes pyramidal :P

Answer 10

#5: Which compound has the lowest melting point?

A. Na2O

B. CaCl2

c. C6H12O6

D. KCl

**my answer: C

is that right?? or no??

and here are the answer choices attached A,B,C,D top to bottom in case :)

Answer 11

wooo hooo!! :) hehehe what about #5? is that one right? :)

Answer 12

yep! all the others have ionic bonds which are much stronger

Answer 13

awesome!! thank you soooo sooo soooo so so so much!! haha :P

Answer 14

no prob! :)

Answer 15

:)