chapter 7 Flashcards

0
Q

a) F-F
b) N—N
c) O–O

which is true of the bond length of these covalent molecules?

A

the bonds in A are longer then the bonds in B and C

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1
Q

which combination of bonds is present in this molecule?

O=O

A

1 sigma bond and 1 pi bond

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2
Q

a) F-F
b) N—N
c) O–O

which covalent molecule has the strongest bond?

A

B

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3
Q

which type of molecular shape is shown by this molecule?

shape equals 120 degrees

A

trigonal planar

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4
Q

which type of molecular shape is shown by this molecule?

shape equals 90/120 degrees

A

trigonal bipyramidal

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5
Q

which is NOT a diatomic molecule?

A

boron

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6
Q

which type of bond has one pair of electrons shared between atoms?

A

single covalent

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7
Q

multiple covalent bonds consist of which of these?

A

1 sigma bond and 1 or 2 pi bonds

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8
Q

in the compound PCI3, how many total valence electrons are present?

A

26

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9
Q

covalent compounds display which of these properties?

A

their intermolecular forces are relatively weak

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10
Q

how many pairs of bonding electrons are present in a molecule that displays trigonal bipyramidal molecular shape?

A

5

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11
Q

what molecular shape does the compound CCI4 have?

A

tetrahedral

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12
Q

which is the correct name for the compound N2O3?

A

dinitrogen trioxide

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13
Q

which is the correct name for the compound PCI5?

A

phosphorous pentachloride

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14
Q

which is the correct name for the compound N2O4?

A

dinitrogen tetroxide

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15
Q

which is the correct formula for the compound dinitrogen monoxide?

A

N2O

16
Q

which is the formula for the compound sulfur hexachloride?

A

SCI6

17
Q

which is the correct name for the compound HCIO3?

A

chloride acid

18
Q

which is the correct for the compound HNO2?

A

nitrous acid

19
Q

which is the correct formula for the compound phosphoric acid?

A

H3PO4

20
Q

which of the following compounds is an exception to the octet rule?

A

BH3

21
Q

name the acid with the following chemical formula H2SO4?

A

sulfuric acid

22
Q

fluorine belongs to group 7A. how many covalent bonds are formed between two fluorine atoms?

A

1

23
Q

how many pi bonds are there in a triple covalent bond?

A

2

24
Q

the name of an oxyacid has the suffix -ic acid. what is the suffix of the oxyanion?

A

ate

25
Q

how many bond pairs of electrons exits in a molecule of ammonia?

A

4