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Unit 3: Chemical Bond And Nomenclature
Test Description: Chemical Bonds and Nomenclature
Instructions: Answer all questions to get your test result.
1) Covalent bond is _________ of electrons while ionic bond is _____ of electrons.
A
sharing unequally; sharing equally
B
sharing; transferring
C
transferring; sharing
D
transferring; transferring
2) Covalent bond is between _____ and _____.
A
metal and metal
B
non-metal and metal
C
metalloid and non-metal
D
non-metal and non-metal
3) What is an example of covalent bond?
A
NaCl
B
K2O
C
MgCl2
D
I2
4) Polar covalent bond is sharing electrons _____ while non-polar covalent bond is sharing electrons _____.
A
equally; equally
B
equally; unequally
C
unequally; equally
D
unequally; unequally
5) What is an ion that K mostly formed?
A
K-2
B
K+2
C
K-1
D
K+1
6) What's the chemical formula for magnesium oxide?
A
MgO2
B
MgO
C
Mg2O2
D
Mg2O
7) How many electrons will magnesium likely lose?
A
4
B
3
C
2
D
1
8) Which pair will most form an ionic bond?
A
C and O
B
N and O
C
Li and Mg
D
Na and O
9) What's the chemical formula of dinitrogen trioxide?
A
N2O5
B
N3O2
C
N2O3
D
N4O2
10) What's the best description of the octet rule?
A
Atoms will lose electrons to have 8 valence electrons.
B
Atoms will share electrons to have 8 valence electrons.
C
Atoms will gain electrons to have 8 valence electrons.
D
All of the above
*select an answer for all questions
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