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Covalent Bonding
Quiz 1
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Q.1
Give the formula for oxygen dichloride
OCl2
O2Cl2
OCl
O2Cl
Q.2
Silicon dioxide is the compound in sand. What is its formula?
SO2
NaO2
SiO2
SiO
Q.3
How many valence electrons are in oxygen, O?
2
7
6
1
Q.4
How many electrons should Carbon have around its Lewis dot structure?
1
3
4
5
Q.5
What is the formula for diphosphorus pentoxide?
P2O5
PO5
P5O2
P2O6
Q.6
How many valence electrons does nitrogen have?
3
2
5
1
Q.7
How many valence electrons does hydrogen have?
4
3
2
1
Q.8
Name CCl4
carbon carbon tetraiodide
carbon tetrachloride
monocarbon tetrachloride
water
Q.9
Identify the following compound as ionic or covalent: CF4
ionic
covalent
Q.10
Which formula is for phosphorus trichloride?
KCl3
PCl3
K3Cl
P3Cl
Q.11
Write the formula for: dihydrogen monoxide
Le
H2
H2O
None of these
Q.12
What is graphene?
A sphere shaped structure of carbon atoms
Several layers of graphite
One layer of graphite
A tube shaped layer of carbon atoms
Q.13
Name the following: As2O3 ( Diarsenic Trioxide )
True
False
Q.14
Name the following: PCl5 ( Phosphorus Pentafluoride )
True
False
Q.15
If a you saw the following, K+; what does it tell you about the the ion.
it has lost one electron
it has lost one proton
it has lost two electrons
it is a negative ion
Q.16
Are the atoms more stable when they are bonded together or when they are apart?
Bonded Together
Apart
Q.17
A(n) _________ is an ion with a positive (+) charge.
anion
cation
ion
solute
Q.18
Fluorine (F₂) is a(n) _________________ molecule because the valence electrons are shared equally between the two fluorine atoms.
polar
nonpolar
ionic
crystal
Q.19
When two atoms share electrons, a chemical bond is formed. This type of bond is called:
covalent bond
ionic bond
crystal bond
polyatomic bond
Q.20
Which of these are an ion?
3 protons, 3 neutrons, 3 electrons.
8 protons, 8 neutrons, 8 electrons
2 protons, 3 neutrons, 2 electrons
6 protons, 6 neutrons, 7 electrons
0 h : 0 m : 1 s
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