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Worksheetschemical bond
Total questions: 10
Worksheet time: 2hrs 34mins
Name
Class
Date
1.
Which compound contains only covalent bonds?
a)
NaOH
b)
Ba(OH)2
c)
Ca(OH)2
d)
CH3OH
2.
Which substance contains bonds that involve a transfer of electrons from one atom to another?
a)
CO2
b)
NH3
c)
KBr
d)
Cl2
3.
Which two substances are covalent compounds?
a)
C6H12O6 (s) and KI (s)
b)
KI (s) and NaCl (s)
c)
C6H12O6 (s) and HCl (g)
d)
NaCl (s) and HCl (g)
4.
In the diagram shown, what is the total number of electrons shared in the bond between the two carbon atoms?
a)
2
b)
3
c)
4
d)
6
5.
Which formula properly represents the compound iron (II) hydroxide?
a)
FeOH2
b)
FeH2
c)
Fe(OH)3
d)
Fe(OH)2
6.
The polarity of a bond between two elements can be best determined by
a)
The difference in electronegativity between the elements
b)
The difference in first ionization energy between the elements
c)
The number of electrons shared in the bond
d)
The difference in atomic radius between the elements
7.
The molecule shown in the diagram can best be classified as a
a)
polar covalent molecule
b)
nonpolar covalent molecule
c)
ionic compound
d)
nonpolar ionic compound
8.
Which of the following elements has the weakest attraction for electrons in a chemical bond?
a)
S
b)
Cl
c)
O
d)
F
9.
Which element can combine with oxygen to form a molecular compound?
a)
Fe
b)
Mg
c)
C
d)
Ne
10.
When forming an ionic bond, a metal atom
a)
Gains electrons to form a cation
b)
Loses electrons to form a cation
c)
Gains electrons to form an anion
d)
Loses electrons to form an anion
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