ECI Polarity Problems .pdf

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ECI Polarity Problems
Name:
1.

Date:

Which formula represents a polar molecule
containing polar covalent bonds?
A.

H2 O

B.

CO2

C.

NaCl

3.

D. Cl2

Which structural formula represents a nonpolar
symmetrical molecule?
A.

C.

2.

O
. /
H
H

B.

H

D.

F

H

H
2
C
2
H

H

N
.2/
H H H

Why is NH3 classi ed as a polar molecule?
A.

NH3 is a gas at STP.

B.

N—H bonds are nonpolar.

C.

Nitrogen and hydrogen are both nonmetals.

4.

D. NH3 molecules have asymmetrical charge
distribution.

When two atoms form a chemical bond by sharing
electrons, the resulting molecule will be
A.

polar, only

B.

nonpolar, only

C.

either polar or nonpolar

D. neither polar nor nonpolar

page 1

Problem-Attic format version 4.4.277
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Licensed for use by Seth Johnson
Terms of Use at www.problem-attic.com
ECI Polarity Problems
1.
Answer:

A

2.
Answer:

D

3.
Answer:

B

4.
Answer:

C

12/04/2016


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