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4.3 - Covalent Bond Flashcards | StudBud
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4.3 - Covalent Bond
4.3 - Covalent Bond
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1
What do we call a covalent bond where electrons are shared UNEQUALLY?
Polar Covalent
Ionic
Nonpolar Covalent
Van der Waals Force
2
In an electron dot diagram, two
pairs
of shared electrons represents a
triple bond
double bond
quadruple bond
single bond
3
Compared to ionic compounds, molecular compounds generally have
more chemical bonds
low boiling point
good conductivity
high boiling point
4
Which of these is not a real bond in chemistry?
Ionic
James
Covalent
5
What type of bond is between the carbon and oxygen?
Quadruple Bond
Single bond
Double Bond
Triple Bond
6
The chemical bond formed when two atoms share electrons is called a(an) IONIC bond.
False
True
7
Why do elements bond?
To be friends
To create a new element
To become stable
8
If a molecule contains polar bonds, the molecule MAY OR MAY NOT be polar overall.
True
False
9
How do covalent bonds form?
Opposite slight charges attract each other between compounds.
Gaining & losing valence e-
Scientists are still not sure how they form.
Sharing valence e-
10
Ionic bonds form between...
Nonmetal and Nonmetal
Metal and Nonmetal
Metal and Metal
11
What type of bond is shown in this picture? It is the WEAKEST type & attracts one water compound to another!
Polar Covalent
Ionic bond
Van der Waals force
Nonpolar Covalent
12
Why is Carbon Dioxide a nonpolar molecule?
Both of its ends are positive so they cancel out
One end is negative and one end is positive
Both of its ends are negative so they cancel out
13
What type of bond is shown in this image?
Polar Covalent
Van der Waals Force
Nonpolar Covalent
Ionic
14
How many electrons are shared in a single bond?
3 pairs
2 electrons
6 electron
2 pairs
15
In a(an) POLAR bond, one atom pulls on the shared electrons more than the other atom.
True
False
16
The forces between molecules are much STRONGER than the forces between ions.
True
False
17
Covalent bonds usually form when a nonmetal combines with a(an) metal.
True
False
18
Covalent bonds form between...
Metal and Nonmetal
Nonmetal and Nonmetal
Metal and Metal
19
Which of the following is NOT formed by a covalent bond?
NaCl
H2O
CO2
H2
20
A Nitrogen molecule (N2) has one triple bond. How many electrons do the nitrogen atoms share?
2
6
4
1
