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Physical Science Review 5.3
Test Description: Covalent Bonding
Instructions: Answer all questions to get your test result.
1) Which of the following has a covalent bond?
A
Al2O3
B
SF4
C
CaCl2
D
KF
2) Which of the following is a polar covalent bond?
A
Ca-Cl
B
P-Cl
C
Si-Si
D
Cl-Cl
3) Which of the following is a nonpolar covalent bond?
A
Si-Si
B
P-Cl
C
Ca-Cl
D
Cl-Cl
4) covalent bonds are formed when 2 atoms ___________ valence electrons
A
gain
B
share
C
none of the choices
D
lose
5) How many covalent bonds can a nitrogen (N) atom make?
A
1
B
4
C
2
D
3
6) O=O is an example of a ______________ bond
A
double
B
triple
C
single
D
ionic
7) Molecular compounds do not have which of the following properties?
A
poor conductivity
B
high boiling points
C
low melting points
D
none of the choices
8) The forces that hold ______________ together is _______
A
molecules; polar
B
ions; weak
C
molecules; weak
D
ions; polar
9) What is necessary to conduct an electric current?
A
neutral particles
B
2 of the choices
C
molecules
D
charged particles
10) ____________ molecules have ____________ bonds and mix well with polar molecules
A
polar; stronger
B
nonpolar; weaker
C
nonpolar; stronger
D
polar; weaker
*select an answer for all questions
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