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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
nonmetal, metal
B
nonmetal, semi-metal
C
metal, nonmetal
D
semi-metal, metal
3) Lattice energy increases as ionic charges * and as their radii *.
A
decrease, increase
B
increase, increase
C
increase, decrease
D
decrease, decrease
4) Arrange NaF, CsI and CaO in order of decreasing lattice energy.
A
NaF, CsI, CaO
B
CsI, NaF, CaO
C
CsI, CaO, NaF
D
CaO, NaF, CsI
5) How many electrons are involved in a double bond?
A
4
B
2
C
8
D
6
6) Bond length * as the number of shared electron pairs increases.
A
decreases
B
remains the same
C
increases
7) The electronegativity of an atom generally decreases to the * and *.
A
right, up
B
left, down
C
right, down
D
left, up
8) List the following in order of decreasing bond polarity: C-F, Be-F, O-F
A
O-F, Be-F, C-F
B
O-F, C-F, Be-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
exothermic, endothermic
B
endothermic, exothermic
C
heat is neither absorbed nor released during bond formation and breaking.
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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