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Chemical Bonding
Test Description: Chemical Bonding
Instructions: Answer all questions to get your test result.
1) What is the formula for diphosphorous pentoxide?
A
P5O2
B
P2O5
C
P2O4
D
P3O5
2) How many bonds in N2?
A
2
B
3
C
1
D
4
3) Calcium Oxide is a(n) _____ compound and the formula is _____.
A
ionic, CaO
B
ionic, CaO2
C
covalent, Ca2O
D
covalent, CaO2
4) Elements from opposite sides of the periodic table form _____.
A
covalent compounds
B
ionic compounds
C
metalic compounds
D
diatomic compounds
5) Based on the octet rule, phosphorus most likely forms a _____ ion.
A
P+
B
P3-
C
P3+
D
P5-
6) Atoms take part in bond formation to _____.
A
attain a stable electronic configuration
B
increase their energy
C
nertralize their charge
D
increase their density
7) What is the name of the compound formed by zinc ions and fluoride ions?
A
zinc(II) fluorite
B
zinc fluorate
C
zinc fluoride
D
zinc difluoride
8) Compounds that have the same number of positive and negative charges are _____.
A
cationic
B
isoelectronic
C
electrically neutral
D
anionic
9) The correct Lewis structure for a Group 18 atom has _____.
A
four pairs of valence electrons
B
one pair of valence electrons and one single valence electron
C
three pairs of valence electrons and one single valence electron
D
two pairs of valence electrons and one single valence electron
10) What is the formula for the compound formed by tin(IV) and the chromate ion?
A
Sn2(CrO4)2
B
Sn2(CrO4)4
C
Sn(CrO4)2
D
Sn(CrO4)4
*select an answer for all questions
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