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CHE 111 C8--Chemical Bonding
Test Description: This game reviews topics covered in Chapter 8 of your text--Chemical Bonding.
Instructions: Answer all questions to get your test result.
1) Ionic bonding is the * of electrons and covalent bonding is the * of electrons.
A
transfer, sharing
B
sharing, transfer
2) electrons are transferred from the * to the *.
A
metal, nonmetal
B
nonmetal, metal
C
semi-metal, metal
D
nonmetal, semi-metal
3) Lattice energy increases as ionic charges * and as their radii *.
A
decrease, increase
B
decrease, decrease
C
increase, increase
D
increase, decrease
4) Arrange NaF, CsI and CaO in order of decreasing lattice energy.
A
CsI, NaF, CaO
B
CaO, NaF, CsI
C
NaF, CsI, CaO
D
CsI, CaO, NaF
5) How many electrons are involved in a double bond?
A
2
B
4
C
6
D
8
6) Bond length * as the number of shared electron pairs increases.
A
remains the same
B
increases
C
decreases
7) The electronegativity of an atom generally decreases to the * and *.
A
right, up
B
left, down
C
left, up
D
right, down
8) List the following in order of decreasing bond polarity: C-F, Be-F, O-F
A
O-F, C-F, Be-F
B
O-F, Be-F, C-F
C
C-F, Be-F, O-F
D
Be-F, C-F, O-F
9) Bond breaking is always * and bond forming is always *.
A
endothermic, exothermic
B
heat is neither absorbed nor released during bond formation and breaking.
C
exothermic, endothermic
10) Ionic compounds have * melting points and covalent compounds have relative * melting ponts.
A
low, high
B
high, low
*select an answer for all questions
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